File:Patent US638920-0.png
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Summary
| Description |
English: Harvard University professor, George Franklin Grant, received U.S. Patent No. 638,920. This tee was a vertical rubber tube attached at its base to wood. Grant's tee was not widely adopted because he did not market it
(Application filed July 1, 1899.) |
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| Source |
https://patentimages.storage.googleapis.com/pages/US638920-0.png https://patents.google.com/patent/US638920A/en?oq=638920 |
| Author | George Franklin Grant, US Patent Office |
| Other versions | Full pdf: https://patentimages.storage.googleapis.com/ea/fa/19/ecd232572095cc/US638920.pdf |
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
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| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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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}}. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:47, 9 October 2026 | | 1,868 × 2,804 (270 KB) | wikimediacommons>Issac I Navarro | Cropped 9% horizontally, 12% vertically, 20% areawise, rotated 0.9° using CropTool2 with precise mode. |
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