US2533741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning means for magnetrons
Assignee: Westinghouse Electric Corp
•
Filing: 1947-11-20
•
Granted: 1950-12-12
•
Expires: 1967-11-20
Abstract
No abstract record available.
Inventors
- 👤 Okress Ernest Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:09
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1633285A
Cited
US2280824A
Cited
US2225032A
Cited
US2272211A
Cited
US2419572A
Cited
US2445282A
Cited
US2435984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |