US2979667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic volume control amplifier
Assignee: Raytheon Co
•
Filing: 1958-05-01
•
Granted: 1961-04-11
•
Expires: 1978-05-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Paschal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:49
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3005; H03G3/301; H03G3/3015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1833750A
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US1999668A
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US1993860A
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US2341013A
Cited
US2426589A
Cited
US2572108A
Cited
US2714702A
Cited
US2730576A
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US2808474A
Cited
US2833870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |