US2920529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic control of optical and near-optical radiation
Assignee: Individual
•
Filing: 1952-05-23
•
Granted: 1960-01-12
•
Expires: 1972-05-23
Abstract
No abstract record available.
Inventors
- 👤 Blythe Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:36
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/0816; G02B26/0825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1906803A
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US1960090A
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US2059159A
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US2312888A
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US2455763A
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US2475148A
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US2496484A
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US2499110A
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US2534846A
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US2476778A
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US2560430A
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US2667104A
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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) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |