Patent US2487222A successfully refreshed from Google Patents.
US2487222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for lens-carrying camera turrets
Assignee: Individual
•
Filing: 1947-09-12
•
Granted: 1949-11-08
•
Expires: 1967-09-12
Abstract
No abstract record available.
Inventors
- 👤 Coutant Andre Clement
- 👤 Mathot Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:53
CPC Classifications
G; G03; G03B; G03B3/00; G03B3/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1023390A
Cited
US1234795A
Cited
US1754356A
Cited
US1754357A
Cited
US1767849A
Cited
US1906059A
Cited
US2052261A
Cited
US2236069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |