US2965011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm setting device for a photographic camera
Assignee: Hittech Prontor GmbH
•
Filing: 1957-09-03
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Granted: 1960-12-20
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Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:24
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB442409A
Cited
US2213749A
Cited
US2351834A
Cited
US2590161A
Cited
FR1014063A
Cited
FR1114903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |