US2990758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic cameras
Assignee: Zeiss Ikon AG
•
Filing: 1957-01-23
•
Granted: 1961-07-04
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Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Sauer Edgar
- 👤 Ruhle Hans
- 👤 Metzger Otto
- 👤 Hahn Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:03
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/04; G03B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2536500A
Cited
GB442409A
Cited
US2213749A
Cited
US2242013A
Cited
US2351834A
Cited
US2467946A
Cited
AT179192B
Cited
AT184058B
Cited
FR1108729A
Cited
FR1111448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |