US2922075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant grid magnetrons
Assignee: Raytheon Co
•
Filing: 1958-03-27
•
Granted: 1960-01-19
•
Expires: 1978-03-27
Abstract
No abstract record available.
Inventors
- 👤 Rue Albert D La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:11
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587; H01J25/02; H01J25/10; H01J25/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585741A
Cited
US2679615A
Cited
US2765424A
Cited
US2784345A
Cited
US2826719A
Cited
US2810095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |