US2441036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens system for telescopes
Assignee: Eastman Kodak Co
•
Filing: 1945-02-14
•
Granted: 1948-05-04
•
Expires: 1965-02-14
Abstract
No abstract record available.
Inventors
- 👤 Schade Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US869395A
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US940894A
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US1468762A
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US1478704A
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DE501456C
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US1865977A
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US2050024A
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US2076190A
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US2187780A
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US2276284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |