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US3483397A
Expired / Lapsed
US
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Apparatus and method for controlling the output of a light emitting semiconductor device
Assignee: Westinghouse Electric Corp
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Filing: 1963-10-16
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Granted: 1969-12-09
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert C Miller
- 👤 Frederick M Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:20
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/06; H01S5/0607; H10; H10D; H10D99/00
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) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |