US2959636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording
Assignee: Individual
•
Filing: 1955-11-04
•
Granted: 1960-11-08
•
Expires: 1975-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jerome H Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:52
CPC Classifications
B; B07; B07C; B07C3/00; B07C3/18; G; G06; G06K; G06K17/00; G06K7/00; G06K7/08; G06K7/082; G06K7/083; G06K7/084; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/257; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B5/00; G11B5/48; G11B5/58; G11B5/60; G11B2220/00; G11B2220/40; G11B2220/41; G11B2220/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2772135A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |