US2988973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic cameras of the two-film type
Assignee: Kamera und Kinowerke Dresden VEB
•
Filing: 1957-10-10
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Granted: 1961-06-20
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Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Bohm Siegfried
- 👤 Skolaude Heinrich
- 👤 Jurenz Rolf
- 👤 Jehmlich Gert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:43
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04; G03B19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE658467C
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US2245606A
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DE707146C
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DE887005C
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US2521404A
Cited
US2506863A
Cited
US2540351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |