Patent US3480781A successfully refreshed from Google Patents.
US3480781A
Expired / Lapsed
US
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Temperature compensated solar cell light sensor
Assignee: Westinghouse Electric Corp
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Filing: 1967-09-15
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Granted: 1969-11-25
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Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 John N Mandalakas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:03
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/95; H10F77/953; H10F77/955; G; G01; G01J; G01J1/00; G01J1/42; G01J1/4228; H10F99/00; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S136/00; Y10S136/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |