US3355369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process using a fluoride electrolyte for the electrolytic and electrochemical working of metals
Assignee: Agie Charmilles SA
•
Filing: 1963-12-09
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Granted: 1967-11-28
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Chaperon Remy
- 👤 Ullmann Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:50
CPC Classifications
B; B23; B23H; B23H3/00; B23H3/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
A PROCESS FOR THE ELECTROLYTIC WORKING OF METALLIC WORKPIECES COMPRISING THE STEPS OF PROVIDING A WORKPIECE FORMED OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STEEL AND CEMENTED CARBIDES AS ONE ELECTGRODE AND SPACING SAID WORKPIECE A SMALL DISTANCEFROM ANOTHER ELECTRODE, FILLING THE SPACE BETWEEN SAID ELECTRODES WITH AN ELECTROLYTE AND REMOVING MATERIAL FROM SAID WORKPIECE BY PASSING A DIRECT CURRENT BETWEEN SAID ELECTRODES AND THROUGH SAID ELECTROLYTE, SAID ELECTROLYTE CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A WATER SOLUBLE FLUORIDE SALT HAVING A PH RANGING FROM A GENERALLY NEUTRAL SOLUTION TO A MILDLY ALKALINE SOLUTION.
Claim 2
Dependent Claim
97 words
A PROCESS FOR THE ELECTROLYTIC WORKING OF METALLIC WORKPIECES COMPRISING THE STEPS OF PROVIDING A WORKPIECE FORMED OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF STEEL AND CEMENTED CARBIDES AS ONE ELECTGRODE AND SPACING SAID WORKPIECE A SMALL DISTANCEFROM ANOTHER ELECTRODE, FILLING THE SPACE BETWEEN SAID ELECTRODES WITH AN ELECTROLYTE AND REMOVING MATERIAL FROM SAID WORKPIECE BY PASSING A DIRECT CURRENT BETWEEN SAID ELECTRODES AND THROUGH SAID ELECTROLYTE, SAID ELECTROLYTE CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A WATER SOLUBLE FLUORIDE SALT HAVING A PH RANGING FROM A GENERALLY NEUTRAL SOLUTION TO A MILDLY ALKALINE SOLUTION.
Claim 3
Dependent Claim
39 words
PROCESS FOR THE ELECTROLYTIC WORKING OF METALLIC WORKPIECES ACCORDING TO CLAIM 1 INCLUDING THE STEP OF COVERING THE SURFACES OF THE WORKPIECE WHICH ARE NOT TO BE WORKED WITH AN ELECTRON CONDUCTIVE LAYER IN ORDER TO LIMIT MATERIAL REMOVAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |