US2871776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television camera iris control mechanism
Assignee: General Precision Laboratory Inc
•
Filing: 1953-07-30
•
Granted: 1959-02-03
•
Expires: 1973-07-30
Abstract
No abstract record available.
Inventors
- 👤 Edward A Calamai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:07
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2697971A
Cited
FR531524A
Cited
US2397546A
Cited
US2572729A
Cited
US2782253A
Cited
US2632370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |