US2953738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier device
Assignee: Westinghouse Electric Corp
•
Filing: 1954-06-02
•
Granted: 1960-09-20
•
Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 Richard L Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/21; H02M7/217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2001836A
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US2263269A
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US2402661A
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US2411742A
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US2486025A
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US2524035A
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US2623102A
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US2582850A
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US2614140A
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US2728857A
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US2698392A
Cited
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 |