Patent US2910913A successfully refreshed from Google Patents.
US2910913A
Expired / Lapsed
US
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Camera microscopes
Assignee: Carl Zeiss AG
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Filing: 1956-05-15
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Granted: 1959-11-03
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Expires: 1976-05-15
Abstract
No abstract record available.
Inventors
- 👤 Michel Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:15
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/36; G02B21/361
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE581535C
Cited
US1980217A
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US1958280A
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US2209532A
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US2303906A
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US2433674A
Cited
AT167070B
Cited
US2607266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |