Patent US2670342A successfully refreshed from Google Patents.
US2832005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron-discharge devices
Assignee: Raytheon Co
•
Filing: 1951-03-06
•
Granted: 1958-04-22
•
Expires: 1971-03-06
Abstract
No abstract record available.
Inventors
- 👤 William C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:47
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)
US2057170A
Cited
US2084867A
Cited
US2211859A
Cited
US2252565A
Cited
US2414121A
Cited
US2443179A
Cited
US2428612A
Cited
US2416298A
Cited
US2423443A
Cited
US2414085A
Cited
US2595677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |