US2956142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric time piece contact mechanism
Assignee: Hamilton Watch Co
•
Filing: 1958-08-15
•
Granted: 1960-10-11
•
Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Koehler Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:59
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49826; Y10T29/4984; Y10T29/49845
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1563488A
Cited
GB318284A
Cited
US1905011A
Cited
US1877171A
Cited
US2435727A
Cited
US2709207A
Cited
US2842626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |