Patent US2493110A successfully refreshed from Google Patents.
US2493110A
Expired / Lapsed
US
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Lens for focusing infrared and ultraviolet rays
Assignee: CORMAN AND YOUNG OPTICAL COMPA
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Filing: 1945-09-28
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Granted: 1950-01-03
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Expires: 1965-09-28
Abstract
No abstract record available.
Inventors
- 👤 Gareld M Corman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:53
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/08; G02B13/00; G02B13/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR11140E
Cited
GB335696A
Cited
FR723996A
Cited
US2085437A
Cited
US2086286A
Cited
US2233591A
Cited
US2216965A
Cited
US2272827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |