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US2990676A
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Battery driven clock
Assignee: Hamilton Watch Co
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Filing: 1958-07-16
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Granted: 1961-07-04
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Expires: 1978-07-16
Abstract
No abstract record available.
Inventors
- 👤 Kaj H Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:04
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1203690A
Cited
FR544715A
Cited
US1911062A
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US1752446A
Cited
US1797912A
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US1913481A
Cited
US2084226A
Cited
US2589052A
Cited
US2618118A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |