US3037199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film switching circuit
Assignee: International Business Machines Corp
•
Filing: 1959-09-14
•
Granted: 1962-05-29
•
Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 Paul M Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:42
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/18; G11C5/00; G11C5/02; G11C5/04; H; H01; H01F; H01F10/00; Y; Y10; Y10S; Y10S322/00; Y10S322/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1139314A
Cited
US2914728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |