Patent US3564897A successfully refreshed from Google Patents.
US3564897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for making quick assembly coupling
Assignee: Alco Industries Inc
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Filing: 1969-02-28
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Granted: 1971-02-23
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Expires: 1989-02-28
Abstract
Abstract AN EXPANDING-OUT TOOL AND METHOD EMPLOYS A MANDREL FOR FORMING WALL DIMPLES IN A TUBULAR COUPLING MEMBER FOR RETAINING A COLLAR NUT IN AN OPERATING POSITION THEREON. ALSO A MANDREL USING METHOD IS EMPLOYED FOR EXPANSIONSHAPING TUBULAR COUPLING MEMBERS AND FOR SECURING THEM BY EXPANSION FORCE APPLICATION WITH RESPECT TO OTHER HOLLOW COUPLING PARTS OR MEMBERS.
Inventors
- 👤 Clyde E Rickard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:50
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/147; B; B21; B21D; B21D39/00; B21D39/04; F16L19/00; F16L19/02; F16L19/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |