US2907934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-linear resistance device
Assignee: General Electric Co
•
Filing: 1953-08-12
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Granted: 1959-10-06
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Expires: 1973-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jan M Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
H; H10; H10D; H10D99/00; H01; H01C; H01C7/00; H01C7/10; H10D10/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2502479A
Cited
US2553491A
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US2644852A
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US2754431A
Cited
US2769926A
Cited
US2735919A
Cited
US2863056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |