Patent US3153689A successfully refreshed from Google Patents.
US3153689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror system
Assignee: Bausch and Lomb Inc
•
Filing: 1961-05-04
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Granted: 1964-10-20
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Expires: 1981-05-04
Abstract
No abstract record available.
Inventors
- 👤 Leslie O Vargady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:25
CPC Classifications
G; G02; G02B; G02B17/00; G02B17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US921773A
Cited
US1736682A
Cited
US1639229A
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US2124892A
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US2607260A
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US2460836A
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US2503422A
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US2670660A
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US2739504A
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US2867149A
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US2876673A
Cited
US2981141A
Cited
FR1204815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |