US2993425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera
Assignee: Hittech Prontor GmbH
•
Filing: 1957-12-19
•
Granted: 1961-07-25
•
Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Waldemar T Rentschler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:16
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2342819A
Cited
US2315977A
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US2302597A
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US2590161A
Cited
US2596328A
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US2596671A
Cited
US2612091A
Cited
US2650526A
Cited
US2716930A
Cited
US2887937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |