US2953741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic amplifiers
Assignee: Westinghouse Electric Corp
•
Filing: 1958-04-21
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Granted: 1960-09-20
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Jr George F Pittman
- 👤 Richard L Bright
- 👤 George H Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:52
CPC Classifications
H; H03; H03F; H03F9/00; H03F9/02; G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |