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United States Patent Dates and Numbers 1836-1990
The United States Patent Office started issuing patent numbers in 1836.
- 1836: 1 - 109
- 1837: 110 - 545
- 1838: 546-1,105
- 1839: 1,106-1,464
- 1840: 1,465-1,922
- 1841: 1,923-2,412
- 1842: 2,413-2,900
- 1843: 2,901-3,394
- 1844: 3,395-3,872
- 1845: 3,873-4,347
- 1846: 4,348-4,913
- 1847: 4,914-5,408
- 1848: 5,409-5,992
- 1849: 5,993-6,980
- 1850: 6,981-7,864
- 1851: 7,865-8,621
- 1852: 8,622-9,511
- 1853: 9,512-10,357
- 1854: 10,358-12,116
- 1855: 12,117-14,008
- 1856: 14,009-16,323
- 1857: 16,324-19,009
- 1858: 19,010-22,476
- 1859: 22,477-26,641
- 1860: 26,642-31,004
- 1861: 31,005-34,044
- 1862: 34,045-37,265
- 1863: 37,266-41,046
- 1864: 41,047-45,684
- 1865: 45,685-51,783
- 1866: 51,784-60,657
- 1867: 60,658-72,958
- 1868: 72,959-85,502
- 1869: 85,503-98,459
- 1870: 98,460-110,616
- 1871: 110,617-122,303
- 1872: 122,304-134,503
- 1873: 134,504-146,119
- 1874: 146,120-158,349
- 1875: 158,350-171,640
- 1876: 171,641-185,812
- 1877: 185,813-198,732
- 1878: 198,733-211,077
- 1879: 211,078-223,210
- 1880: 223,211-236,136
- 1881: 236,137-251,684
- 1882: 251,685-269,819
- 1883: 269,820-291,015
- 1884: 291,916-310,162
- 1885: 310,163-333,493
- 1886: 333,494-355,290
- 1887: 355,291-375,719
- 1888: 375,720-395,304
- 1889: 395,305-418,664
- 1890: 418,665-443,986
- 1891: 443,987-466,314
- 1892: 466,315-488,975
- 1893: 488,976-511,743
- 1894: 511,744-531,618
- 1895: 531,619-552,501
- 1896: 552,502-574,368
- 1897: 574,369-596,466
- 1898: 596,467-616,870
- 1899 : 616,871-640,166
- 1900 : 640,167-664,826
- 1901: 664,827-690,384
- 1902: 690,385-717,520
- 1903: 717,521-748,566
- 1904: 748,567-778,833
- 1905: 778,834-808,617
- 1906: 808,618-839,798
- 1907: 839,799-875,678
- 1908: 875,679-908,435
- 1909: 908,436-945,009
- 1910: 945,010-980,177
- 1911: 980,178-1,013,094
- 1912: 1,013,095-1,049,325
- 1913: 1,049,326-1,083,266
- 1914: 1,083,267-1,123,211
- 1915: 1,123,212-1,166,418
- 1916: 1,166,419-1,210,388
- 1917: 1,210,389-1,251,457
- 1918: 1,251,458-1,290,026
- 1919: 1,290,027-1,326,898
- 1920: 1,326,899-1,364,062
- 1921: 1,364,063-1,401,947
- 1922: 1,401,948-1,440,361
- 1923: 1,440,362-1,478,995
- 1924: 1,478,996-1,521,589
- 1925: 1,521,590-1,568,039
- 1926: 1,568,040-1,612,699
- 1927: 1,612,700-1,654,520
- 1928: 1,654,521-1,696,896
- 1929: 1,696,897-1,742,180
- 1930: 1,742,181-1,787,423
- 1931: 1,787,424-1,839,189
- 1932: 1,839,190-1,892,662
- 1933: 1,892,663-1,941,448
- 1934: 1,941,449-1,985,877
- 1935: 1,985,878-2,026,515
- 1936: 2,026,516-2,066,308
- 1937: 2,066,309-2,104,003
- 1938: 2,104,004-2,142,079
- 1939: 2,142,080-2,185,169
- 1940: 2,185,170-2,227,417
- 1941: 2,227,418-2,268,539
- 1942: 2,268,540-2,307,006
- 1943: 2,307,007-2,338,080
- 1944: 2,338,081-2,366,153
- 1945: 2,366,154-2,391,855
- 1946: 2,391,856-2,413,674
- 1947: 2,413,675-2,433,823
- 1948: 2,433,824-2,457,796
- 1949: 2,457,797-2,492,943
- 1950: 2,492,944-2,536,015
- 1951: 2,536,016-2,580,378
- 1952: 2,580,379-2,624,045
- 1953: 2,624,046-2,664,561
- 1954: 2,664,562-2,698,433
- 1955: 2,698,434-2,728,912
- 1956: 2,728,913-2,775,761
- 1957: 2,775,762-2,818,566
- 1958: 2,818,567-2,866,972
- 1959: 2,866,973-2,919,442
- 1960: 2,919,443-2,966,680
- 1961: 2,966,681-3,015,102
- 1962: 3,015,103-3,070,800
- 1963: 3,070,801-3,116,486
- 1964: 3,116,487-3,163,864
- 1965: 3,163,865-3,226,728
- 1966: 3,226,729-3,295,142
- 1967: 3,295,143-3,360,799
- 1968: 3,360,800-3,419,906
- 1969: 3,419,907-3,487,469
- 1970: 3,487,470-3,551,908
- 1971: 3,551,909-3,631,538
- 1972: 3,631,539-3,707,728
- 1973: 3,707,729-3,781,913
- 1974: 3,781,914-3,858,240
- 1975: 3,858,241-3,930,270
- 1976: 3,930,271-4,000,519
- 1977: 4,000,520-4,065,811
- 1978: 4,065,812-4,131,951
- 1979: 4,131,952-4,180,866
- 1980: 4,180,867-4,242,756
- 1981: 4,242,757-4,308,621
- 1982: 4,308,622-4,366,578
- 1983: 4,366,579-4,423,522
- 1984: 4,423,523-4,490,884
- 1985: 4,490,885-4,562,595
- 1986: 4,562,596-4,633,525
- 1987: 4,633,526-4,716,593
- 1988: 4,716,594-4,794,651
- 1989: 4,794,652-4,890,334
- 1990: 4,890,335-4,980,926
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