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(Record Group 241)
1836-1973
23,879 cu. ft.
Table of Contents
- 241.1 ADMINISTRATIVE HISTORY
- 241.2 RECORDS OF THE PATENT OFFICE (RECONSTRUCTED RECORDS)RELATING TO 'NAME AND DATE' PATENTS1837-8712 lin. ft.
- 241.3 RECORDS OF THE PATENT OFFICE RELATING TO NUMBERED PATENTS 1836-197324,863 lin. ft.
- 241.4 CARTOGRAPHIC RECORDS (GENERAL)
Serial Number Lookup
241.1 ADMINISTRATIVE HISTORY
Established: In the Department of Commerce by the Patent OfficeName Change Act (88 Stat. 1949), January 2, 1975.
Predecessor Agencies:
Patent Board, consisting of Secretary of State, Secretary of War,and Attorney General (1790-93)In the Department of State:
- Secretary of State (1793-1802)
- Superintendent of Patents (1802-36)
- Patent Office (1836-49)
- Patent Office, Department of the Interior (1849-1925)
- Patent Office, Department of Commerce (1925-75)
Finding Aids: Forrest R. Holdcamper, comp., 'PreliminaryInventory of the Records of the Patent Office,' NC 147 (1966);supplement in National Archives microfiche edition of preliminaryinventories.
Related Records: Record copies of publications of the PatentOffice and the Patent and Trademark Office in RG 287,Publications of the U.S. Government.
RECORDS| RECORD TYPES | RECORD LOCATIONS | QUANTITIES |
|---|---|---|
| Textual Records | Washington Area | 23,518 cu. ft. |
| Arch/engr Plans | College Park | 126,600 items |
241.2 RECORDS OF THE PATENT OFFICE (RECONSTRUCTED RECORDS)
RELATING TO 'NAME AND DATE' PATENTS
1837-87
12 lin. ft.
History: Granting of patents for inventions made a function ofthe Federal Government by Article I, section 8, of theConstitution. Patent Board, consisting of Secretary of State,Secretary of War, and Attorney General, established by the PatentAct of 1790 (1 Stat. 109), April 10, 1790. Abolished by thePatent Act of 1793 (1 Stat. 318), February 21, 1793, withresponsibility for issuing patents given to Secretary of State.Superintendent of Patents appointed by Secretary of State, 1802.Superintendent of Patents and staff, collectively called thePatent Office, functioned in immediate office of the Secretary ofState, 1802-36. By the Patent Act of 1836 (5 Stat. 117), July 4,1836, Patent Office established as a separate organization withinthe Department of State, with a Commissioner of Patents at itshead. SEE 241.3.
Patent Serial Number Search
Note: Patent records predating 1836 were unnumbered and could beaccessed only by name of patentee and date of patent. After 1836,unique numbers assigned by the Patent Office distinguished eachnew patent.
Most original patent records were destroyed by fire, December 15,1836. Reconstruction of the records was authorized by the PatentAct of 1837 (5 Stat. 191), March 3, 1837, which permittedinventors who had letters patent either to submit the originals,or certified copies of the originals, to the Patent Office; or,in the absence of documentation, to create a new patent documentfurnished under oath as conforming to original drawings andspecifications. Arbitrary numbers suffixed with 'X' were assignedby the Patent Office to the restored drawings and specifications.
Textual Records: Copies, made 1839-87, of certificates describingpatents ('Patent Heads') granted between 1794 and 1835.Specifications, copied 1837-83, relating to original and reissuedpatents granted before 1837. Copies, made 1837-47, relating topatents granted before 1837.
Engineering Plans (3,000 items): Drawings, made 1837-47, ofpatents granted between 1791 and 1836, with accompanying name anddate list. SEE ALSO 241.4.
Microfilm Publications: T1235.
241.3 RECORDS OF THE PATENT OFFICE RELATING TO NUMBERED PATENTS
1836-1973
24,863 lin. ft.
History: Patent Office transferred to newly establishedDepartment of the Interior by an act of March 3, 1849 (9 Stat.395). Transferred, effective April 1, 1925, to Department ofCommerce, by EO 4175, March 17, 1925. Renamed the Patent andTrademark Office, 1975. SEE 241.1.
Textual Records: General correspondence, 1836-68. Copies ofspecifications relating to claims for additional improvements,1837-61. Case files for patent rights extensions, 1836-75. Copiesof extensions of patent certificates, 1839-77. Registers ofpatent extension applications, 1866-77. Digests relating toassignments of patent property rights, 1837-1905, with indexes,1837-1923. Patent assignment digests and indexes, 1922-57.Miscellaneous correspondence and rejected petitions, 1837-54.Letters received, 1872-82. Abandoned patent applications, 1894-1937. Patent application files, 1837-1918 (19,874 ft.). Index ofinventors filing applications for patents (series of 1935), ca.1935-47. Serial registers of patent applications received (seriesof 1880, 1900, 1915, 1925, 1935, 1948, 1956, 1961, and 1970),1880-1973. Index of inventors filing applications for designpatents, 1922-48. Serial register, and examiner's serialregister, of design applications received, 1924-48. Index ofcorporation patent assignments, 1938-46. Index of corporatetrademark applications, 1924-61. Index of foreign firm patentassignments, 1938-46. Patent transfer books ('Liber PatentTransfer Volumes'), 1836. Patent assignment digest books, 1919.Interference case files, 1836-1919. Registers of interferences,1839-1905. Copies of specifications relating to numbered patents,1837-40, and to reissued patents, 1838-48. Letters sent by theCommissioner of Patents relating to patent models to be displayedat the 1893 World's Columbian Exposition (Chicago, IL), 1892-94.Caveat case files relating to inventions of Thomas A. Edison,1872-82. Organization charts, 1929-39.
Engineering Plans (123,600 items): Original patent drawings ofinventions ('Utility Patents'), 1837-71 (112,000 items). Designpatent drawings, 1842-77 (9,500 items). Drawings of additionalimprovements of patents, 1838-61 (300 items). Drawings to justifyreissue of patents invalidated by unintentional inaccuracies inthe original applications, 1838-70 (1,800 items). SEE ALSO 241.4.
Finding Aids: James E. Primas, comp., 'Lists of Names ofInventors in the Case Files Relating to the Extension of PatentRights, 1836-75,' NC 20 (1963); James A. Paulauskas, comp.,Additional Improvement Patents, 1837-1861, SL 39 (1977). John P.Butler, comp., Patent Interference Case Files: 1838-1900, SL 59(1993).
241.4 CARTOGRAPHIC RECORDS (GENERAL)
Patent Serial Number Search Free
SEE Engineering Plans UNDER 241.2 and 241.3.3.
Bibliographic note: Web version based on Guide to Federal Records in the National Archives of the United States. Compiled by Robert B. Matchette et al. Washington, DC: National Archives and Records Administration, 1995.3 volumes, 2428 pages.
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This Web version is updated from time to time to include records processed since 1995.
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