US3027488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunable magnetrons
Assignee: Raytheon Co
•
Filing: 1958-11-03
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Granted: 1962-03-27
•
Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Donald L Winsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:48
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA554552A
Cited
US2462510A
Cited
US2508576A
Cited
US2824999A
Cited
US2738441A
Cited
US2657334A
Cited
US2797361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |