US3761367A
Expired / Lapsed
US
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Method of electrochemical working of electrically conductive material
Assignee: VYZK USTAV MECH
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Filing: 1971-10-29
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Granted: 1973-09-25
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Expires: 1991-10-29
Abstract
Abstract IN ELECTROCHEMICAL WORKING OF ELECTRICALLY CONDUCTIVE MATERIAL, THE AMOUNT OF THE LIQUID WORKING MEDIUM CONDUCTING ELECTRIC CURRENT PASSING THROUGH THE INTERELECTRODE GAP IS VARIED TOGETHER WITH VARIATIONS OF THE MAGNITUDE OF THIS GAP SO THAT PRIOR TO FINISHED WORKING A MINIMUM INTERELECTRODE GAP IN DIRECTION OF MUTUAL ADVANCE OF TOOL AND WORKPIECE IS ACHIEVED.
Inventors
- 👤 J Zubak
- 👤 C Trebichavsky
- 👤 J Augustin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:44
CPC Classifications
B; B23; B23H; B23H3/00; B23H3/10
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |