US2935879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving mechanism for magnetic recorder and player
Assignee: V M Corp
•
Filing: 1954-08-16
•
Granted: 1960-05-10
•
Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 James L D Morrison
- 👤 Harbor Berton
- 👤 Willard J Fanlkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:55
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B19/00; G11B19/20; G11B19/26; G11B19/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US868435A
Cited
US2248384A
Cited
US2221661A
Cited
US2418541A
Cited
US2529376A
Cited
US2490667A
Cited
US2711104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |