US2957116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechano-electric clocks
Assignee: Hurd Lock and Manufacturing Co
•
Filing: 1957-06-14
•
Granted: 1960-10-18
•
Expires: 1977-06-14
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Hurd
- 👤 Jr Leo Goran
- 👤 Charles E Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:59
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR789483A
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US2472249A
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FR923788A
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US2652460A
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GB761609A
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FR1090564A
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GB746465A
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US2751550A
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US2843742A
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US2831114A
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US2877399A
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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) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |