US2907810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery holder for electric wrist watches
Assignee: Hamilton Watch Co
•
Filing: 1956-02-07
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Granted: 1959-10-06
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Expires: 1976-02-07
Abstract
No abstract record available.
Inventors
- 👤 Harry S Detwiler
- 👤 Oscar R Petters
- 👤 Harwell B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:16
CPC Classifications
G; G04; G04C; G04C10/00; H; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/216; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |