US3395401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital information recording system with simultaneous traverse of recording means and recording medium
Assignee: Individual
•
Filing: 1964-03-30
•
Granted: 1968-07-30
•
Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:27
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11B; G11B15/00; G11B15/18; G11B15/1808; G11B15/20; G11B5/00; G11B5/127; G11B5/187; G11B5/31; G11B5/48; G11B5/49; G11B5/4907; G11B5/54; Y; Y10; Y10S; Y10S347/00; Y10S347/90
Claims Analysis
Total Claims: 0
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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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |