US2960611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape recorders
Assignee: Epsylon Research and Development Co Ltd
•
Filing: 1957-11-18
•
Granted: 1960-11-15
•
Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Namenyi-Katz Laszlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:18
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/56; B; B41; B41J; B41J32/00; B41J32/02; G11B23/00; G11B23/02; G11B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US804306A
Cited
US2009856A
Cited
US2229638A
Cited
US2295327A
Cited
US2551198A
Cited
US2679394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |