Patent US2313966A successfully refreshed from Google Patents.
US2835731A
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Double channel pulse amplifier
Assignee: Individual
•
Filing: 1951-07-31
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Granted: 1958-05-20
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Expires: 1971-07-31
Abstract
No abstract record available.
Inventors
- 👤 Richard W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:45
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/0675
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2236066A
Cited
US2379739A
Cited
US2489297A
Cited
US2493648A
Cited
US2570431A
Cited
US2490561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |