Patent US843875A successfully refreshed from Google Patents.
US843875A
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US
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Dies and punches for making hexagonal nuts.
Assignee: Individual
•
Filing: 1905-02-07
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Granted: 1907-02-12
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Expires: 1925-02-07
Abstract
No abstract record available.
Inventors
- 👤 George Dunham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:08
CPC Classifications
C; C14; C14B; C14B5/00; C14B5/02; B; B26; B26D; B26D3/00; B26D3/12; Y; Y10; Y10S; Y10S83/00; Y10S83/917; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/929; Y10T83/9411; Y10T83/9418; Y10T83/942
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-02-11 | 1910-08-13 | 1911-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-11 | 1914-08-13 | 1915-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-11 | 1918-08-13 | 1919-02-12 | $7700.00 | Window Closed / Lapsed |