US2808762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens mounting means
Assignee: Bausch and Lomb Inc
•
Filing: 1956-06-25
•
Granted: 1957-10-08
•
Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles J De Grave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876384A
Cited
US859215A
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US1111093A
Cited
US1283963A
Cited
US1417326A
Cited
US2203660A
Cited
US2477896A
Cited
US2484464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |