US2750840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration damped mirrors
Assignee: Individual
•
Filing: 1953-12-28
•
Granted: 1956-06-19
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Sklarek Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1424405A
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US1694833A
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US1934223A
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US1910864A
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US2097419A
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US2102012A
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US2025971A
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US2179808A
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US2473698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |