US2506582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic polishing of metals
Assignee: Individual
•
Filing: 1945-06-20
•
Granted: 1950-05-09
•
Expires: 1965-06-20
Abstract
No abstract record available.
Inventors
- 👤 Mateosian Edward Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:30
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/16; C25F3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE METHOD OF ELECTROLYTICALLY POLISHING A METAL SELECTED FROM THE GROUP CONSISTING OF BRASSES, BRONZES, COPPER, COBALT, NICKEL AND FERROUS METALS COMPRISING, MAKING A SPECIMEN OF THE METAL THE ANODE OF AN ELECTROLYTIC CELL IN WHICH THE ELECTROLYTE CONSISTS ESSENTIALLY OF A SOLUTION, SUBSTANTIALLY SATURATED AT ROOM TEMPERATURE, IN WHICH THE SOLUTE IS AN ALKALI METAL SALT OF AN ACID SLECTED FROM THE GROUP CONSISTING OF BORIC, THIOSULFURIC AND ORTHOPHOSPHORIC ACIDS AND THE SOLVENT IS WATER, AND A COMPLETELY WATER MISCIBLE ORGANIC ALCOHOL, WHICH ELECTROLYTE IS SELF-BUFFERING AT A PH SUITABLE FOR POLISHING, MAINTAINING THE ANODE AT A TEMPERATURE BELOW THAT OF THE ELCTROLYTE, AND PASSING AN ELECTRIC CURRENT THROUGH SAID CELL WHEREBY A METALLOGRAPHIC POLISH IS EFFECTED ON SAID SPECIMEN.
Claim 2
Independent Claim
121 words
THE METHOD OF ELECTROLYTICALLY POLISHING A METAL SELECTED FROM THE GROUP CONSISTING OF BRASSES, BRONZES, COPPER, COBALT, NICKEL AND FERROUS METALS COMPRISING, MAKING A SPECIMEN OF THE METAL THE ANODE OF AN ELECTROLYTIC CELL IN WHICH THE ELECTROLYTE CONSISTS ESSENTIALLY OF A SOLUTION, SUBSTANTIALLY SATURATED AT ROOM TEMPERATURE, IN WHICH THE SOLUTE IS AN ALKALI METAL SALT OF AN ACID SLECTED FROM THE GROUP CONSISTING OF BORIC, THIOSULFURIC AND ORTHOPHOSPHORIC ACIDS AND THE SOLVENT IS WATER, AND A COMPLETELY WATER MISCIBLE ORGANIC ALCOHOL, WHICH ELECTROLYTE IS SELF-BUFFERING AT A PH SUITABLE FOR POLISHING, MAINTAINING THE ANODE AT A TEMPERATURE BELOW THAT OF THE ELCTROLYTE, AND PASSING AN ELECTRIC CURRENT THROUGH SAID CELL WHEREBY A METALLOGRAPHIC POLISH IS EFFECTED ON SAID SPECIMEN.
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) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |