Patent US3223338A successfully refreshed from Google Patents.
US3223338A
Expired / Lapsed
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Tape drive mechanism
Assignee: Fujitsu Ltd
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Filing: 1963-07-31
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Granted: 1965-12-14
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Takeuchi Sho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:44
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/56; G11B15/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A TAPE DRIVING SYSTEM, COMPRISING A PAIR OF SPACED TAPE REELS SUPPORTING UPON THEM AND BETWEEN THEM A SINGLE MAGNETIZABLE TAPE, VACUUM MEANS ACTING UPON A PORTION OF SAID MAGNETIZABLE TAPE INTERMEDIATE SAID REELS FOR ADJUSTING THE TENSION UPON SAID TAPE, A SINGLE ROTATABLE CAPSTAN DIRECTLY ENGAGING THE INTERMEDIATE PORTION OF SAID TAPE FOR DRIVING SAID TAPE IN EITHER DIRECTION, MAGNETIC READ-IN AND READ-OUT MEANS IN OPERATIVE PROXIMITY
Claim 2
Dependent Claim
68 words
A TAPE DRIVING SYSTEM, COMPRISING A PAIR OF SPACED TAPE REELS SUPPORTING UPON THEM AND BETWEEN THEM A SINGLE MAGNETIZABLE TAPE, VACUUM MEANS ACTING UPON A PORTION OF SAID MAGNETIZABLE TAPE INTERMEDIATE SAID REELS FOR ADJUSTING THE TENSION UPON SAID TAPE, A SINGLE ROTATABLE CAPSTAN DIRECTLY ENGAGING THE INTERMEDIATE PORTION OF SAID TAPE FOR DRIVING SAID TAPE IN EITHER DIRECTION, MAGNETIC READ-IN AND READ-OUT MEANS IN OPERATIVE PROXIMITY
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |