US3346713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical discharge machining dielectric coolant
Assignee: Motors Liquidation Co
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Filing: 1963-07-19
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Granted: 1967-10-10
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Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Rudolph W Blatt
- 👤 Charles F Froberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:56
CPC Classifications
B; B23; B23H; B23H1/00; B23H1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF ERODING PARTICLES FROM AN ELECTRICALLY CONDUCTIVE ANODIC ARTICLE BY ELECTRICAL DISCHARGE WHICH COMPRISES CAUSING INTERMITTENT ELECTRICAL DISCHARGE ACROSS A GAP BETWEEN A CATHODE AND AN ANODE WHILE MAINTAINING IN SAID GAP A FLUID CONSISTING ESSENTIALLY OF AT LEAST ONE POLYCYCLIC ORGANIC COMPOUND, SAID COMPOUND HAVING A CARBON-TO-HYDROGEN ATOMIC RATIO OF ABOUT 0.8 TO ABOUT 1.8.
Claim 2
Independent Claim
58 words
A METHOD OF ERODING PARTICLES FROM AN ELECTRICALLY CONDUCTIVE ANODIC ARTICLE BY ELECTRICAL DISCHARGE WHICH COMPRISES CAUSING INTERMITTENT ELECTRICAL DISCHARGE ACROSS A GAP BETWEEN A CATHODE AND AN ANODE WHILE MAINTAINING IN SAID GAP A FLUID CONSISTING ESSENTIALLY OF AT LEAST ONE POLYCYCLIC ORGANIC COMPOUND, SAID COMPOUND HAVING A CARBON-TO-HYDROGEN ATOMIC RATIO OF ABOUT 0.8 TO ABOUT 1.8.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |