Patent US2660925A successfully refreshed from Google Patents.
US2660925A
Expired / Lapsed
US
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Light reflector which transmits infrared rays
Assignee: Bausch and Lomb Inc
•
Filing: 1949-12-01
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Granted: 1953-12-01
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Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:24
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B5/10; G02B5/20; G02B5/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1342894A
Cited
US1425967A
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DE716153C
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US2379790A
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US2394533A
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US2412496A
Cited
US2495499A
Cited
US2519722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |