US2929308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic camera having exchangeable objectives
Assignee: Voigtlander AG
•
Filing: 1956-12-28
•
Granted: 1960-03-22
•
Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Swarofsky Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:20
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE517036C
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US2222298A
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US2319304A
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US2725805A
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US2672798A
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US2829574A
Cited
US2830513A
Cited
FR1106716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |