US2968006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A. c.-d. c. amplifier
Assignee: CBS Broadcasting Inc
•
Filing: 1956-10-23
•
Granted: 1961-01-10
•
Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 William S Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:32
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2281488A
Cited
US2594841A
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US2529459A
Cited
US2695337A
Cited
US2792458A
Cited
US2716162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |