Patent US5373078A successfully refreshed from Google Patents.
Patent US3395401A successfully refreshed from Google Patents.
US3395401A
Expired / Lapsed
US
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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 05:15
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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References Cited (Backward Citations)
US2479308A
Cited
US2532100A
Cited
US2658950A
Cited
US2736770A
Cited
US2714048A
Cited
US2832840A
Cited
US2979572A
Cited
US2907985A
Cited
US3059049A
Cited
US3283068A
Cited
US2997697A
Cited
US3132206A
Cited
US3157748A
Cited
US3205301A
Cited
US3134527A
Cited
US3159822A
Cited
US3303483A
Cited
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 |