File:Widlar Patent.PNG
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Summary
| Description |
English: Drawing from RJ Widlar's original patent for the Widlar current source |
| Date | |
| Source | US Patent Office patent number 3,320,439 |
| Author | RJ Widlar |
Licensing
|
The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:59, 27 September 2012 | | 1,667 × 1,892 (104 KB) | Rswarbrick | Higher resolution and straightened version of patent image. |
| 18:16, 28 June 2008 |  | 768 × 698 (90 KB) | Brews ohare | {{Information |Description={{en|1=Drawing from RJ Widlar's original patent for the Widlar current source}} |Source=US Patent Office patent number 3,320,439 |Author=RJ Widlar |Date=May 26, 1965 |Permission= |other_versions=None }} http://patimg1.uspto.gov/ |
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