US3568485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for straightening and testing workpieces
Assignee: Republic Steel Corp
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Filing: 1968-08-09
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Granted: 1971-03-09
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Expires: 1988-08-09
Abstract
Abstract APPARATUS FOR STRAIGHTENING AND TESTING WORKPIECES INCLUDES A MACHINE FRAME SUPPORTING STRAIGHTENING ROLLERS. THE APPARATUS ALSO INCLUDES A WORKPIECE TESTING ASSEMBLY WHICH IS REMOVABLY SUPPORTED BY THE FRAME. THE TESTING ASSEMBLY INCLUDES A FLAW DETECTING ELEMENT AND A MARKER WHICH MARKS LOCATIONS OF FLAWS DETECTED BY THE SENSING ELEMENT. IN THE DISCLOSED EMBODIMENT A GUIDE ROLL ENGAGES THE WORKPIECE AS IT PASSES FROM THE APPARATUS.
Inventors
- 👤 Joseph M Mandula Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:03
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; B; B21; B21D; B21D3/00; B21D3/02; B21D3/04
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |