US3037090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for duplicating magnetic tape records
Assignee: RCA Corp
•
Filing: 1957-01-25
•
Granted: 1962-05-29
•
Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Bouzemburg Athans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:27
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/86; G11B5/865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1846110A
Cited
US2297242A
Cited
US2738383A
Cited
US2747026A
Cited
US2666813A
Cited
US2686229A
Cited
US2705599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |