Patent US2962577A successfully refreshed from Google Patents.
US2962577A
Expired / Lapsed
US
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Electrical discharge machining method
Assignee: Elox Corporation of Michigan
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Filing: 1959-02-09
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Granted: 1960-11-29
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Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Robert S Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:04
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE PROCESS OF ELECTRICAL-DISCHARGE-MACHINING WHICH COMPRISES, PASSING INTERMITTENT, HIGH FREQUENCY, SHORT DURATION ELECTRICAL DISCHARGES ACROSS A GAP TO A WORKPIECE FROM AN ELECTRODE OF ELECTRICALLY CONDUCTIVE MATERIAL HAVING AN IONIC DENSITY GREATER THAN 4 IN THE PRESENCE OF A COOLANT HAVING RELATIVELY HIGH METHYL GROUP DENSITY.
Claim 2
Dependent Claim
46 words
THE PROCESS OF ELECTRICAL-DISCHARGE-MACHINING WHICH COMPRISES, PASSING INTERMITTENT, HIGH FREQUENCY, SHORT DURATION ELECTRICAL DISCHARGES ACROSS A GAP TO A WORKPIECE FROM AN ELECTRODE OF ELECTRICALLY CONDUCTIVE MATERIAL HAVING AN IONIC DENSITY GREATER THAN 4 IN THE PRESENCE OF A COOLANT HAVING RELATIVELY HIGH METHYL GROUP DENSITY.
References Cited (Backward Citations)
US2766364A
Cited
US2798934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |