Patent US2564716A successfully refreshed from Google Patents.
US2564716A
Expired / Lapsed
US
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Magnetron and method of manufacture
Assignee: Westinghouse Electric Corp
•
Filing: 1942-10-01
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Granted: 1951-08-21
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Expires: 1962-10-01
Abstract
No abstract record available.
Inventors
- 👤 Okress Ernest Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:56
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2128235A
Cited
US2063342A
Cited
GB509102A
Cited
CH215600A
Cited
US2216169A
Cited
US2270777A
Cited
US2304186A
Cited
US2411601A
Cited
US2411151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |