US2923196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Voigtlander AG
•
Filing: 1958-02-05
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Granted: 1960-02-02
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Expires: 1978-02-05
Abstract
No abstract record available.
Inventors
- 👤 Papke Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 02:40
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE269447C
Cited
DE558417C
Cited
US1985067A
Cited
GB521679A
Cited
US2633051A
Cited
FR1007969A
Cited
FR996990A
Cited
FR1025524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |