US3080552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory device
Assignee: Atvidabergs Industrier AB
•
Filing: 1958-10-14
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Granted: 1963-03-05
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Expires: 1978-10-14
Abstract
No abstract record available.
Inventors
- 👤 Stemme Nils Gustaf Erik
- 👤 Wahlstrom Sven Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:31
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G06; G06K; G06K17/00; G06K17/0003; G06K17/0012; G11B15/005; G11B15/675; G11B15/68; G11B15/6885
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
IN A RANDOM ACCESS STORAGE DEVICE, IN COMBINATION, A PLURALITY OF COILS, EACH COMPRISING A NUMBER OF TURNS OF A TAPE SHAPED RECORD MEDIUM, EACH OF SAID COILS BEING ROTATABLY MOUNTED ON ONE OF A PLURALITY OF NON-COAXIAL SHAFTS PLACED SIDE BY SIDE ON A COMMON MOVABLE CARRIER, MEANS FOR MOVING SAID CARRIER IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF SAID COILS TO POSITION A SELECTED COIL IN A SUBSTANTIALLY FIXED WINDING POSITION, FIXED MEANS FOR WINDING THE TAPE ON AND OFF A COIL OCCUPYING SAID WINDING POSITION, FIXED MEANS FOR REPRODUCING AND RECORDING INFORMATION ON THE TAPE, FIXED GUIDING MEANS FOR GUIDING THE OUTER FREE END OF TAPE OF A SELECTED COIL PAST SAID RECORDING AND REPRODUCING MEANS, AND MEANS FOR DRIVING THE TAPE AT A CONTROLLED SPEED PAST SAID REPRODUCING AND RECORDING MEANS.
References Cited (Backward Citations)
US2821576A
Cited
US2852761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |