US2929972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-conductor devices
Assignee: Honeywell Inc
•
Filing: 1954-01-21
•
Granted: 1960-03-22
•
Expires: 1974-01-21
Abstract
No abstract record available.
Inventors
- 👤 Edward G Roka
- 👤 Asbjorn M Severson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:54
CPC Classifications
H; H10; H10P; H10P95/00; H10W; H10W40/00; H10W40/60; H10W40/611; H10W40/70; H10W40/20; H10W40/231; H10W40/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2665399A
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US2353461A
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US2538593A
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US2684457A
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US2703855A
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US2735050A
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US2759133A
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US2754455A
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US2730663A
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US2809332A
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US2725505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |