Patent US3090574A successfully refreshed from Google Patents.
US3090574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape magazine
Assignee: 3M Co
•
Filing: 1959-05-18
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Granted: 1963-05-21
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Daniel P Doncaster
- 👤 Benjamin B Bauer
- 👤 Abraham A Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:28
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/107; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/46; G11B15/50; Y; Y10; Y10S; Y10S242/00; Y10S242/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
IN A CARTRIDGE FOR MAGNETIC TAPE AND THE LIKE, THE COMBINATION OF A SHALLOW BOX-LIKE CONTAINER HAVING A FLAT BASE AND SIDES EXTENDING, CENTRALLY DISPOSED CYLINDRICAL JOURNAL MEANS ON SAID BASE INSIDE SAID CONTAINER, SPOOL MEANS IN SAID CONTAINER HAVING HUB MEANS ROTATABLY MOUNTED TO SAID JOURNAL MEANS AND PROVIDED ON ONLY ONE SIDE THEREOF WITH LATERALLY EXTENDING FLANGE MEANS IN SPACED APART RELATION TO SAID CONTAINER BASE, A FLAT COVER FOR SAID CONTAINER HAVING A CENTRAL OPENING THEREIN PROVIDING ACCESS TO SAID HUB MEANS, MEANS EXTENDING INWARDLY FROM SAID COVER FOR MAINTAINING SAID FLANGE MEANS IN CLOSELY SPACED RELATION TO SAID COVER, FRICTION MEANS ENGAGING SAID HUB MEANS, MEANS COOPERATING WITH SAID CONTAINER BASE AND WITH SAID FRICTION MEANS FOR URGING THE LATTER AXIALLY OUTWARDLY WITH RESPECT TO SAID CONTAINER TO HOLD SAID SPOOL MEANS RELEASABLY AGAINST ROTATION IN SAID CONTAINER, A ROLL OF TAPE WOUND ON SAID SPOOL MEANS BETWEEN SAID FLANGE MEANS AND SAID BASE AND HAVING A FREE END, AND A TERMINAL MEMBER SECURED TO SAID TAPE FREE END EXTERNALLY OF SAID CONTAINER.
Claim 2
Dependent Claim
177 words
IN A CARTRIDGE FOR MAGNETIC TAPE AND THE LIKE, THE COMBINATION OF A SHALLOW BOX-LIKE CONTAINER HAVING A FLAT BASE AND SIDES EXTENDING, CENTRALLY DISPOSED CYLINDRICAL JOURNAL MEANS ON SAID BASE INSIDE SAID CONTAINER, SPOOL MEANS IN SAID CONTAINER HAVING HUB MEANS ROTATABLY MOUNTED TO SAID JOURNAL MEANS AND PROVIDED ON ONLY ONE SIDE THEREOF WITH LATERALLY EXTENDING FLANGE MEANS IN SPACED APART RELATION TO SAID CONTAINER BASE, A FLAT COVER FOR SAID CONTAINER HAVING A CENTRAL OPENING THEREIN PROVIDING ACCESS TO SAID HUB MEANS, MEANS EXTENDING INWARDLY FROM SAID COVER FOR MAINTAINING SAID FLANGE MEANS IN CLOSELY SPACED RELATION TO SAID COVER, FRICTION MEANS ENGAGING SAID HUB MEANS, MEANS COOPERATING WITH SAID CONTAINER BASE AND WITH SAID FRICTION MEANS FOR URGING THE LATTER AXIALLY OUTWARDLY WITH RESPECT TO SAID CONTAINER TO HOLD SAID SPOOL MEANS RELEASABLY AGAINST ROTATION IN SAID CONTAINER, A ROLL OF TAPE WOUND ON SAID SPOOL MEANS BETWEEN SAID FLANGE MEANS AND SAID BASE AND HAVING A FREE END, AND A TERMINAL MEMBER SECURED TO SAID TAPE FREE END EXTERNALLY OF SAID CONTAINER.
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |