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Samuel F. Speers, Jan 23, 1968 http://patimg1.uspto.gov/.DImg?Docid=US003364616&PageNum=1&IDKey=804A31E8C1FC&ImgFormat=tif
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In general, the contents of United States patents are in the public domain.[1] 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:[2] [3] 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. |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 23:36, 23 January 2007 | 1,345×757 (250 KB) | Hholland (Talk | contribs) | (Samuel F. Speers, Jan 23, 1968 http://patimg1.uspto.gov/.piw?Docid=03364616&homeurl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect2%3DPTO1%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%2526r%3D1%2526f%3D) |
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| Orientation | Normal |
|---|---|
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | Adobe Photoshop CS2 Macintosh |
| File change date and time | 18:31, 23 January 2007 |
| Color space | 65535 |
