US3068326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing apparatus
Assignee: RCA Corp
•
Filing: 1957-07-23
•
Granted: 1962-12-11
•
Expires: 1977-07-23
Abstract
No abstract record available.
Inventors
- 👤 Michael J Nowlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
G; G11; G11B; G11B5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563545A
Cited
US2540299A
Cited
US2561338A
Cited
US2654003A
Cited
US2810791A
Cited
US2811588A
Cited
US2829209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |