US3423594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric semiconductor device with optical fiber means coupling input signals to base
Assignee: ANTHONY G GALOPIN
•
Filing: 1964-03-03
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Granted: 1969-01-21
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Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Anthony G Galopin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4219; G02B6/4228; G02B6/423; G02B6/4248; G02B6/4295; H; H03; H03K; H03K17/00; H03K17/51; H03K17/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2640901A
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US2812445A
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US2759124A
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US3205390A
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US2948815A
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US3004168A
Cited
US3114283A
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US3188478A
Cited
US3213179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |