US2919387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Point contact semiconductor device
Assignee: Texas Instruments Inc
•
Filing: 1953-06-05
•
Granted: 1959-12-29
•
Expires: 1973-06-05
Abstract
No abstract record available.
Inventors
- 👤 Cornelison Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:00
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D64/23; H10D48/00; H10D48/30; H10D48/32; H10D48/34; H10D48/345; H10D99/00; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W72/00; H10W76/00; H10W76/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49147; Y10T29/49151
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1885108A
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US2154301A
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US2154302A
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US2615965A
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US2673311A
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US2584461A
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US2744308A
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US2696574A
Cited
US2696575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |