US3495140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-emitting diodes and method of making same
Assignee: RCA Corp
•
Filing: 1967-10-12
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Granted: 1970-02-10
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Expires: 1987-10-12
Abstract
No abstract record available.
Inventors
- 👤 Roy H Cornely
- 👤 Walter F Kosonocky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:47
CPC Classifications
H; H10; H10P; H10P52/00; H10H; H10H20/00; H10H20/80; H10P14/00; H10P14/20; H10P14/26; H10P14/263; H10P14/265; H10P14/32; H10P14/3202; H10P14/3214; H10P14/3221; H10P14/34; H10P14/3402; H10P14/3414; H10P14/3421; H10P14/3438; H10P14/3441; H10P14/3442; H10P14/3444; H10P14/3446; Y; Y10; Y10S; Y10S148/00; Y10S148/05; Y10S148/107; Y10S148/145
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) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |