US3012234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise reduction in pulse-width modulated recording
Assignee: Jersey Production Research Co
•
Filing: 1958-01-16
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Granted: 1961-12-05
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Kay N Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; H04N5/91; H04N5/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2721989A
Cited
US2685079A
Cited
US2827622A
Cited
US2839615A
Cited
US2807797A
Cited
US2826750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |