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Patent US2450711A successfully refreshed from Google Patents.
US2450711A
Expired / Lapsed
US
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Semirimless spectacle mounting
Assignee: Bausch and Lomb Inc
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Filing: 1945-06-04
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Granted: 1948-10-05
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Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Bouchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
G; G02; G02C; G02C1/00; G02C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1825503A
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US2108667A
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US2257812A
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US2352729A
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US2277118A
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US2357267A
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US2373862A
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US2330249A
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US2372059A
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US2385975A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-05 | 1952-04-05 | 1952-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-05 | 1956-04-05 | 1956-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-05 | 1960-04-05 | 1960-10-05 | $7700.00 | Window Closed / Lapsed |