US2800842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera
Assignee: Rollei Werke Franke und Heidecke GmbH and Co KG
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Filing: 1955-05-18
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Granted: 1957-07-30
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Expires: 1975-05-18
Abstract
No abstract record available.
Inventors
- 👤 Albrecht Hermann Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:27
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |