US3473032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric surface induced p-n junction device
Assignee: Inventors and Investors Inc
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Filing: 1968-02-08
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Granted: 1969-10-14
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Expires: 1988-02-08
Abstract
No abstract record available.
Inventors
- 👤 Kurt Lehovec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:01
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/062; H10D; H10D44/00; H10D44/40; H10D44/45; H10D99/00; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/28; H10F30/2823; H10F99/00; H10H20/80
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) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |