Australian designs, Victorian designs, British designs, American designs
United States registered designs are called design patents. They may be granted for any new, original or ornamental design for an article of manufacture.
Only the appearance of an article is protected by a design patent grant, and not the structural or utilitarian features.
Design patents are prefixed with the letter 'D' and were first registered in 1843 (No.D1), and the current term of grant is 14 years from the date of issue.
Official Gazette of the United States Patent Office - 1872 to 1901 + 1923 to 1985 - YA 608 UN3G - contains a descriptive list of design patents from 1872 +, and from 5th April 1892, drawings are included. These journals are held offsite, and issues need to be pre-ordered by staff.
|A bicycle grass cutter IAN01/11/95/18|
1845 to 1871 - Alphabetical list of names in each annual volume of the Annual Report of the Commissioner of Patents (NOTE that the State Library's has incomplete holdings from 1845 to 1871)
1872 + annual name index in each volume of Index of patents issued from the United States Patent Office (NOTE that the State Library only has incomplete holdings from 1927 to 1985)
1845 to 1871 - Numerical list of design patents in each annual volume of the Annual report of the Commissioner of Patents (State Library's holdings are incomplete)
1790 to 1873 - Alphabetical list articles (eg badge, chair, table) registered as US design patents, is listed in Volume 3 (pages 1,858 to 1,911) of Subject-matter index of patents for inventions issued by the United States Patent Office from 1790 to 1873, inclusive (1976) (Volumes 1-3) - R 608 UN3S.
Annual classified index published from 1872 + in each volume of Index of patents issued from the United States Patent Office (NOTE that the State Library only has incomplete holdings from 1927 to 1985)
Hat design patent C R Place
Design 56990 25 Jan 1921
1790 to 1975 - searchable only by Issue Date, Patent Number, and Current US Classification
Full text searching from 1976 +
Limit searches to design patents (1843 +) by selecting 'Design (D)' in the 'Patent type/status' field.
pat2pdf.org - Search by US design patent numbers and display full text of all US design patents
Note that US Patents from 1790 to 1836 were issued by name and date, but no number was allocated.
The current system of numbering US patents began on 13 July 1836. Design patents are prefixed with the letter 'D', were first registered in 1843.
In line with the stage 3 restrictions announced by the Premier, State Library Victoria closed on Thursday 9 July.
We will advise when there is any update to this situation.
Our Ask A Librarian reference service is still available to assist with your research inquiries.