US2458802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron assembly and method
Assignee: Raytheon Co
•
Filing: 1942-03-30
•
Granted: 1949-01-11
•
Expires: 1962-03-30
Abstract
No abstract record available.
Inventors
- 👤 Percy L Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:32
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2043733A
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US2121598A
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US2163157A
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GB509102A
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US2305781A
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US2289984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |