Patent US2912031A successfully refreshed from Google Patents.
US2912031A
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Bolt head having circumferentially spaced serrations
Assignee: Daimler Benz AG
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Filing: 1955-02-14
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Granted: 1959-11-10
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Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Bensinger Wolf-Dieter
- 👤 Fritz Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB133093A
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US1779805A
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US1803317A
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US2133465A
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US2411364A
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US2401967A
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US2548840A
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US2544304A
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US2685320A
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FR1008460A
Cited
US2642242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |