Patent US3278738A successfully refreshed from Google Patents.
US3278738A
Expired / Lapsed
US
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Light deflector
Assignee: Bausch and Lomb Inc
•
Filing: 1964-01-02
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Granted: 1966-10-11
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Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 James A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2344370A
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US1751584A
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US2130494A
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US2480178A
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US2525414A
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US3058021A
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US3166623A
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US3088037A
Cited
US3131690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |