US2424344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cooled rectifier
Assignee: Westinghouse Electric Corp
•
Filing: 1943-05-27
•
Granted: 1947-07-22
•
Expires: 1963-05-27
Abstract
No abstract record available.
Inventors
- 👤 Cyril G Veinott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/43; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/929; Y10S388/93; Y10S388/934
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |