US2444242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetron
Assignee: General Electric Co
•
Filing: 1942-05-09
•
Granted: 1948-06-29
•
Expires: 1962-05-09
Abstract
No abstract record available.
Inventors
- 👤 John P Blewett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:42
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
AT103231B
Cited
US1791973A
Cited
US2073599A
Cited
US2233779A
Cited
US2096817A
Cited
US2157585A
Cited
US2143146A
Cited
US2158114A
Cited
US2151766A
Cited
US2235517A
Cited
US2288812A
Cited
US2400770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |