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US3537919A
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Method of fabrication of gunn effect devices
Assignee: Fairchild Semiconductor Corp
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Filing: 1968-05-22
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Granted: 1970-11-03
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Expires: 1988-05-22
Abstract
No abstract record available.
Inventors
- 👤 Charles A Bittmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:58
CPC Classifications
H; H10; H10P; H10P50/00; H10P50/20; H10P50/24; H10P50/246; H10N; H10N80/00; Y; Y10; Y10S; Y10S148/00; Y10S148/05; Y10S148/051; Y10S148/135; Y10S438/00; Y10S438/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3435306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |