HOME


United States - 718 Slide Rule Patents

KEEP ISRM FREE!
Donations are
tax deductable
Work in Progress - Clickable Thumbnails to PDF files will be added first followed by descriptions
For a quick date on a patent number issued since 1836 look at Table of Issue Years and Patent Numbers from the United States Patent and Trademark Office.

U.S. Patents 1851-1930

US0007961
Mar 4, 1851
CALCULATING MACHINE
John W. Nystrom
US0139601
June 3, 1873
DRAFTSMAN'S RULING-GAGES
Augustus F. Nagle
US0145549
US0157239
US0168505
US0188083
US0196071
US0199721
US0214510
US0219246
US0228416
US0249117
US0275089
USRE10592
US0283331
US0297573
US0331264
US0356140
US0379536
US0387070
US0399129
US0417261
US0426444
US0450640
US0456869
US0460930
Oct 6, 1891
ENGINEER'S SLIDE RULE
William Cox
New York
Keuffel & Esser Co.
US0465811
US0478885
US0484538
US0484567
US0486070
US0492677
US0513172
US0514725
US0515978
US0517308
USxxxxxxx
US0543899
US0555218
US0556761
US0580783
US0585336
US0592067
US0603370
US0603695
US0604963
US0606388
June, 28, 1898
SLIDE RULE
John G.D. Mack
Diane, Wisconsin
US0616132
US0621348
US0640584
US0651142
US0657916
US0661096
US0669286
US0677817
US0693774
US0694258
US0701103
US0703437
US0717381
US0721405
US0734288
US0746888
US0748050
US0753840
US0767170
US0768971
US0769044
US0770061
US0770552
US0773235
US0786102
US0788638
US0790564
US0801354
US0802344
US0811625
US0813485
US0814467
US0825363
US0829526
US0838696
US0843944
US0845463
US0845747
US0847904
US0879237
US0880907
US0883800
Apr. 7, 1908
CALCULATING RULE
W.H. Harlow
US0884729
US0887390
US0907373
US)908741
US0909621
US0922465
US0933605
US0937863
US0962441
US0974354
US0980412
US0982876
US0996039
US0997680
US1000562
Slide-Rule
Aug. 15, 1911
Bernard T. Steber
US1001061
US1004339
US1005560
US1009493
US1012660
US1014344
US1017719
US1021484
US1028237
US1036575
US1040592
US1041204
US1042755
US1050129
US1056578
US1056775
US1088175
US1108480
US1123507
US1123849
US1145042
US1153565
US1154619
US1157526
US1157609
US1160798
US1168059
US1170886
US1171741
US1181672
US1195702
US1210488
US1214040
US1219261
US1234758
US1250379
US1255939
Feb. 12, 1918
POCKET CALCULATOR
Gilbert Small
US1257765
US1260454
US1279798
US1291742
US1306379
US1321845
US1322770
US1329902
Jiro Hemmi
US1330132
US1338588
US1343549
US1364154
US1378666
US1378993
US1382011
US1383492
US1383969
US1387267
US1398914
US1404019
US1404951
US1405333
US1411541
US1418947
US1423896
US1424344
US1425589
US1426825
US1431409
US1433186
US1435422
US1437298
US1439218
US1439936
US1454104
US1455339
US1455339
US1456061
US1459886
US1461677
US1461975
US1467853
US1474533
US1476799
US1482441
US1484176
US1487805
US1488190
US1488686
US1525598
US1525752
US1527086
US1532014
US1533530
US1541871
US1553969
US1554176
US1558843
US1560599
US1568475
US1571728
US1572547
US1574249
US1579706
US1581567
US1588470
US1596129
US1597483
US1598600
US1599102
US1599582
US1599904
US1602479
US1605355
US1605922
US1609972
US1615510
US1623998
US1632505
US1645009
US1653125
US1655819
US1659246
US1659357
US1661095
US1667449
US1668950
US1671616
US1674157
US1678019
US1691104
US1692326
US1713025
US1735892
US1737659
US1742824
US1777692
US1786938

U.S. Patents 1930-1951

US1790569
Jan 27, 1931
SLIDE RULE
Jean Asper
US1802440
US1802969
US1813830
US1821431
US1834745
US1849058
US1855523
US1870655
US1875927
US1880148
US1881165
US1892012
US1894294
US1904474
US1919383
US1930852
US1934232
US1935021
US1936998
US1942349
US1942536
US1947699
US1952134
US1959990
US1961295
US1962866
US1978038
US1979512
US1983062
US1987536
US1989223
US2000337
US2019708
US2026538
US2027349
US2045621
June 30, 1936
Calculating Apparatus
Albert F. Spitzglass, et al.
US2046397
US2048819
US2051502
US2058280
US2061853
US2067068
US2071195
US2071416
US2073421
March 9, 1937
RULE
Joseph Komorous
Riverside, Ill.
Parisan Novelty Co.
US2079464
US2080857
US2086502
US2087446
US2088395
US2091039
US2091661
US2093124
US2095215
US2103332
US2117155
US2117413
US2120878
US2126431
US2136169
US2137630
US2138879
US2143559
US2143892
USRE20984
US2147304
US2153089
US2156568
US2158476
US2161345
US2165275
US2168056
US2170144
US2173459
US2177176
US2185677
US2190281
US2193929
US2203194
US2207375
US2209485
US2215503
US2221476
US2221924
US2225356
US2230161
US2233073
US2235106
US2238529
US2244125
US2247531
US2250739
US2264406
US2265372
US2268886
US2274266
US2275219
US2283473
US2284783
US2285722
US2289717
US2294195
US2301033
US2294199
US2295497
US2301591
US2307534
US2309675
US2313021
US2326413
US2328881
US2331967
US2334725
US2335792
US2339222
US2341681
US2342674
US2343273
US2344146
US2353475
US2358309
US2358478
US2358479
US2369819
US2373671
US2375878
US2377977
US2379931
US2381660
US2382064
US2385948
US2385952
US2387404
US2392461
US2393922
US2395042
US2403382
US2403614
US2404746
US2405720
US2406495
US2407338
US2410210
US2411491
US2415231
US2415415
US2418370
US2418803
US2418910
US2421745
US2422421
US2422649
US2422663
US2423822
US2424713
US2425097
US2426362
US2426601
US2429212
US2430599
US2432569
US2434306
Jan. 13, 1948
STATISTICAL SLIDE RULE
Kenneth.R.Wood
Fort Dix, N.J.
United Stats Army
US2435133
US2435705
US2436352
US2437722
US2439025
US2439209
US2439413
US2443158
US2443882
US2445008
US2445464
US2449954
US2450668
Oct 5, 1948
CALCULATOR
E.G. Kesling
US2451784
US2452417
US2454157
US2454987
US2456676
US2460558
US2462339
US2462823
US2463067
US2466883
US2466983
US2468582
US2470495
US2471491
US2473876
US2478096
US2478547
US2486748
US2489030
US2489790
US2494291
US2500460
US2500924
US2502300
US2503398
US2506103
US2506176
US2506299
US2510391
US2511270
US2512458
US2517590
US2520208
US2526408
US2527734
US2527776
US2528010
US2528518
US2530047
US2533489
US2533954
US2534695
US2535119
US2535374
US2538502
US2543313
US2544224
US2546243
US2547955
US2552201
US2552383
US2558646
US2561263
US2563512
US2564616
US2564991
US2569202
US2569454
US2569466
US2569505
US2570642
US2572811
US2575288
US2577785
US2578705

U.S. Patents 1952-Present

US2585595
Feb 12, 1952
INTERUPTING CAPACITY CALCULATOR FOR LOW-VOLTAGE ALTERNATING CURRENT DISTRIBUTION SYSTEMS
Nye S. Spencer
US2585618
US2591058
US2593628
US2594857 April 29, 1952
SLIDE RULE
Wilfred J. BOOS
Clayton, MO.
Acu-Rule Manufacturing Co. St. Louis , Missouri.
US2595299
US2597523
US2597609
US2598095
US2602574
US2615630
US2617591
US2622326
US2623696
US2628025
US2634912
US2634913
US2642662
US2643057
US2643058
US2643823
US2648254
US2649247
Aug. 18, 1953
Slide Rule
George R. Stibitz, Burlington, Vt
Barber-Coleman Company, Rockford, IL
US2650762
US2656978
Oct 27, 1953
IMPROVEMENT IN OR RELATING TO SLIDE RULE
N.E. Nicolet
US2658671
US2661900
US2696348
US2699894
US2701096
US2701687
Feb. 8, 1955
SLIDE RULE
Wilfred J. BOOS
Webster Groves, MO.
Acu-Rule Manufacturing Co. St. Louis , Missouri.
US2706081
US2706600
US2710142
US2710143
US2715779
US2718063
US2718357
US2721032
US2724552
US2725194
US2728523
US2741432
Apr 10, 1956
SLIDE RULE
Alan Hisey, Univ of Ala.
US2746682
US2750671
US2764348
US2766654
US2766931
US2767915
US2767919
US2773415
US2775404
US2792992
US2795168
US2800279
US2809787
US2823857
US2824374
US2824696
US2825504
US2826361
US2832539
US2834546
US2841888
US2841889
US2853236
Sept. 23, 1958
OCEANOGRAPHIC SLIDE RULE FOR DETERMINING SALINITY
M.F. Culbertson
US2874478
US2893630
US2898038
US2942781
US2955357
US2959346
US2959346
US2970864
US2973143
US2977044
US2991934
US2998916
US3005269
US3006074
US3008677
US3013337
US3016628
US3023954
US3027069
US3029680
US3037285
June 5, 1962
NAVIGATION INSTRUMENT
H.J.Flowers, Et al.
US3047221
US3053447
US3061190
US3065903
US3067932
US3076596
US3091389
US3095144
US3120342
US3120923
US3122314
US3130905
US3144990
US3146942
US3147915
US3162363
US3202352
US3209999
US3231189
US3232531
US3243110
US3255961
US3257075
US3261548
US3269018
US3275235
US3276684
US3282500
US3288362
US3294318
US3298604
US3299768
US3309017
US3314602
US3341117
US3356297
US3372869
US3378195
Apr. 16, 1968
SLIDE RULE PEN
Charles H.Scuh
US3397838
US3405868
US3406901
US3436012
US3443750
US3471084
US3473732
US3485447
US3497678
US3497681
US3512709
US3544768
US3551647
US3559881
US3568922
US3570757
US3572583
US3586844
US3598306
US3599598
US3610758
US3618591
US3625092
US3625092
US3635398
US3639733
US3643859
US3652831
US3654437
US3654438
US3670958
US3677467
US3685727
US3688089
US3688090
US3693872
US3693873
US3698630
US3699313
US3699314
US3700162
US3710108
US3716187
US3719806
US3732399
US3732632
US3733470
US3738009
US3743821
US3751813
US3754702
US3779454
US3784093
US3795795
US3803389
US3808708
USRE28033
US3814308
US3821521
US3829663
US3837569
US3853264
US3908732
US3908895
US3914889
US3916163
US3922538
US3924110
US3933305
US3986002
US4001551
US4009379
US4026463
US4028529
US4028538
US4035627
US4037084
US4039819
US4047012
US4067186
US4120091
US4124795
US4137448
US4157626
US4186297
US4189634
US4208805
US4212117
US4212118
US4308449
US4311902
US4323766
US4329570
US4347669
US4354842
US4390778
US4456821
US4595184
US4611113
US4680453
US4775779
US4855577
US4994656
US5286953
US5310995
US5398418
US5551160
US5708260
US5731572
US5892212
US5960576
US6135348
US6167627
US6393707

Copyright © 2003-
International Slide Rule Museum