US2419768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gimbal locking mechanism
Assignee: Elgin National Watch Co
•
Filing: 1945-05-18
•
Granted: 1947-04-29
•
Expires: 1965-05-18
Abstract
No abstract record available.
Inventors
- 👤 George G Ensign
- 👤 Robert R Lawson
- 👤 Earl H Schaefer
- 👤 Jr Wenzel M Wochos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:57
CPC Classifications
G; G04; G04B; G04B41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2182534A
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US643298A
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US746848A
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US1187733A
Cited
US1256442A
Cited
US1880982A
Cited
US1880992A
Cited
US1974220A
Cited
US2145584A
Cited
US2213832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |