US2491453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: WILLIAM L GILBERT CLOCK Corp
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Filing: 1945-06-09
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Granted: 1949-12-13
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Expires: 1965-06-09
Abstract
No abstract record available.
Inventors
- 👤 Knobel Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:12
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/04; G04B37/049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1345766A
Cited
US1965024A
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US1957694A
Cited
FR772494A
Cited
CH199533A
Cited
US2237958A
Cited
US2245918A
Cited
US2294280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |