US3021433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asymmetrically conductive device employing semiconductors
Assignee: Honeywell Inc
•
Filing: 1957-12-31
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Granted: 1962-02-13
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:27
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/28; H10F30/2823; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/842; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2725474A
Cited
US2704431A
Cited
US2763832A
Cited
US2891160A
Cited
US2900531A
Cited
US2944167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |