File:1521030.gif
Original file (841 × 1,305 pixels, file size: 36 KB, MIME type: image/gif)
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Summary
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| Description |
English: 1521020 patent of 1923 |
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| Source |
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| Author | James W. McGhee |
Licensing
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In general, the contents of United States patents are in the public domain.
In specific cases, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent (see 37 CFR 1.71(d) & (e) and 37 CFR 1.84(s), and MPEP § 608.01(e) & (w) and MPEP § 1512):
The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. (This template can be replaced by {{PD-US-patent-no notice}} in such cases.)
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Original upload log
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- 2007-05-02 21:30 Richard Arthur Norton (1958- ) 841×1305×4 (36872 bytes) 1521020 patent of 1923 {{PD}}
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:59, 26 November 2007 | | 841 × 1,305 (36 KB) | Jonny-mt (talk | contribs) | {{Information |Description={{en|1521020 patent of 1923}} |Source=Transfered from [http://en.wikipedia.org en.wikipedia] |Date=2007-05-02 (original upload date) |Author=Original uploader was [[:en:User:Richard Arthur Norton (1958- )|Richard Arthur Norton ( |
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