US3171312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for shearing tubular members
Assignee: AT&T Inc
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Filing: 1961-12-06
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Granted: 1965-03-02
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Expires: 1981-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis J Fuchs
- 👤 Henry R Tillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:37
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/14; Y; Y10; Y10T; Y10T83/00; Y10T83/384; Y10T83/395; Y10T83/398; Y10T83/444; Y10T83/463; Y10T83/4632
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A MANDREL ASSEMBLY COMPRISING A FIRST SECTION, A PLURALITY OF RESILIENT CANTILEVERS MOUNTED IN AND PROJECTING FROM ONE FACE OF SAID FIRST SECTION, A SECOND SECTION HAVING A PLURALITY OF RECESSES FOR RECEIVING SAID CANTILEVERS, SAID CANTILEVERS CONSTANTLY URGING SAID SECOND SECTION INTO ALIGNMENT WITH SAID FIRST SECTION, AND A TIE ROD INTERCONNECTING THE TWO SECTIONS.
Claim 2
Dependent Claim
56 words
A MANDREL ASSEMBLY COMPRISING A FIRST SECTION, A PLURALITY OF RESILIENT CANTILEVERS MOUNTED IN AND PROJECTING FROM ONE FACE OF SAID FIRST SECTION, A SECOND SECTION HAVING A PLURALITY OF RECESSES FOR RECEIVING SAID CANTILEVERS, SAID CANTILEVERS CONSTANTLY URGING SAID SECOND SECTION INTO ALIGNMENT WITH SAID FIRST SECTION, AND A TIE ROD INTERCONNECTING THE TWO SECTIONS.
References Cited (Backward Citations)
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US2526163A
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US2627921A
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US2701014A
Cited
US2669302A
Cited
US2856997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |