US2473567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic discharge device
Assignee: Raytheon Co
•
Filing: 1945-03-20
•
Granted: 1949-06-21
•
Expires: 1965-03-20
Abstract
No abstract record available.
Inventors
- 👤 William C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:48
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/54; H01J25/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2115521A
Cited
US2252118A
Cited
GB509102A
Cited
US2248712A
Cited
US2241976A
Cited
US2391016A
Cited
US2424886A
Cited
US2421636A
Cited
US2428888A
Cited
US2432466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |