US3514715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer,light-emitting semiconductor device
Assignee: RCA Corp
•
Filing: 1967-06-29
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Granted: 1970-05-26
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Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Walter F Kosonocky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/40; H01S5/4025; H01S5/4031; H01S5/4043; H10; H10H; H10H20/00; H10H20/80; H10W; H10W90/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3431513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |