US2986608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording cross-talk elimination
Assignee: RCA Corp
•
Filing: 1958-04-04
•
Granted: 1961-05-30
•
Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
- 👤 James L Pettus
- 👤 Rettinger Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:50
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/008; G11B5/00813; G11B5/00817; G11B5/00821; G11B5/00826; G11B5/0083; G11B5/127; G11B5/17; G11B5/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2700703A
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US2713676A
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US2727096A
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US2901549A
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US2822533A
Cited
US2704789A
Cited
US2871464A
Cited
FR1117701A
Cited
GB776401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |