US2822538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse power control
Assignee: Individual
•
Filing: 1945-11-05
•
Granted: 1958-02-04
•
Expires: 1965-11-05
Abstract
No abstract record available.
Inventors
- 👤 Jr John B Trevor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:46
CPC Classifications
H; H03; H03K; H03K7/00; H03K7/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2265290A
Cited
GB520606A
Cited
US2329570A
Cited
US2404527A
Cited
US2307023A
Cited
US2451632A
Cited
US2462859A
Cited
US2492018A
Cited
US2419340A
Cited
US2572080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |