US2798951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-cavity magnetron
Assignee: RCA Corp
•
Filing: 1952-11-29
•
Granted: 1957-07-09
•
Expires: 1972-11-29
Abstract
No abstract record available.
Inventors
- 👤 Jr John S Donal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:53
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |