Patent US3484663A successfully refreshed from Google Patents.
US3484663A
Expired / Lapsed
US
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Junction type semiconductor optical discriminator
Assignee: GTE Sylvania Inc
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Filing: 1968-09-25
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Granted: 1969-12-16
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Expires: 1988-09-25
Abstract
No abstract record available.
Inventors
- 👤 Michael N Halus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:17
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/0014; H10; H10F; H10F99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3048797A
Cited
US3061726A
Cited
US3147414A
Cited
US2994054A
Cited
US3053926A
Cited
US3222530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |