US2697201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable nonlinear resistance
Assignee: Westinghouse Electric Corp
•
Filing: 1949-09-27
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Granted: 1954-12-14
•
Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Harder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:34
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/26; G06G7/28; G06G7/48; G06G7/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2104336A
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US2248563A
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US2401404A
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US2434155A
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US2548913A
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US2581124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |