US2846592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated semiconductor devices
Assignee: International Business Machines Corp
•
Filing: 1955-05-20
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Granted: 1958-08-05
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
- 👤 Richard F Rutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:55
CPC Classifications
H; H10; H10D; H10D88/00; H03; H03F; H03F1/00; H03F1/30; H03F1/302; H10D89/00; H10D89/10; H10D89/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB369546A
Cited
US2681993A
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US2582850A
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US2579336A
Cited
US2659011A
Cited
US2655610A
Cited
US2735948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |