US3613422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire drawing apparatus and method using intermediary impact device
Assignee: The Ohio State University
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Filing: 1969-04-28
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Granted: 1971-10-19
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Expires: 1989-04-28
Abstract
Abstract THIS INVENTION IS AN APPARATUS FOR DRAWING WIRE UTILIZING AN AXIALLY APERTURED PIEZOELECTRIC ELECTROMECHANICAL TRANSDUCER AND AXIALLY APERTURED STRAIGHT VIBRATORY-MECHANICAL TRANSMISSION LINE IN CONJUNCTION WITH A WIREDRAWING DIE (IMPACTED BY THE TRANSMISSION LINE) TO REDUCE THE CROSS SECTION OF THE WIRE. REFERENCE IS MADE TO THE CLAIMS FOR A LEGAL DESCRIPTION OF THE INVENTION.
Inventors
- 👤 Lytton A Kendall Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:15
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/006
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |