US2995287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape recorder
Assignee: Epsylon Research and Development Co Ltd
•
Filing: 1958-11-07
•
Granted: 1961-08-08
•
Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Namenyi-Katz Laszlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/43; G11B15/46; G11B15/50; G11B15/60; G11B15/605; G11B23/00; G11B23/02; G11B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |