US2877345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clock mechanism
Assignee: General Time Corp
•
Filing: 1954-05-18
•
Granted: 1959-03-10
•
Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Beiser
- 👤 Roger G Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:08
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/18; G04C23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2578843A
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US2721441A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |