Patent US3032884A successfully refreshed from Google Patents.
US3032884A
Expired / Lapsed
US
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Magnetic signal storage arrangements
Assignee: International Computers and Tabulators Ltd
•
Filing: 1959-07-21
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Granted: 1962-05-08
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Expires: 1979-07-21
Abstract
No abstract record available.
Inventors
- 👤 Collins Bernard Patrick
- 👤 Shepherd Dennis Vivian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:44
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/10; G11B5/00; G11B5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107558A
Cited
DE654908C
Cited
US2612566A
Cited
US2747152A
Cited
US2905768A
Cited
US2969435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |