Patent EP0255041A1 successfully refreshed from Google Patents.
Patent US2695872A successfully refreshed from Google Patents.
US2695872A
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US
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Electrolytic polishing method
Assignee: Armco Inc
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Filing: 1948-12-15
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Granted: 1954-11-30
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Expires: 1968-12-15
Abstract
No abstract record available.
Inventors
- 👤 Espy Ronald Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:07
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/16; C25F3/22; C25F3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN THE CONTROLLED POLISHING OF A STAINLESS STEEL PRODUCT TO ACHIEVE UNIFORM RATE OF METAL REMOVAL THE ART WHICH COMPRISES; IMMERSING THE PRODUCT TO BE POLISHED AND AN ELECTRODE SUBSTANTIALLY CONTAINING TANTALUM IN AN AQUEOUS ELECTROLYTIC POLISHING BATH CONSISTING ESSENTIALLY OF ALIPHATIC CARBOXYLIC ACID AND SULFURIC ACID; MAKING THE STAINLESS STEEL PRODUCT AND SAID ELECTRODE THE OPPOSING TERMINALS OF THE ELECTROLYTIC BATH; AND SUPPLYING ALTERNATING CURRENT TO THE BATH TERMINALS FOR POLISHING THE STEEL.
Claim 2
Dependent Claim
74 words
IN THE CONTROLLED POLISHING OF A STAINLESS STEEL PRODUCT TO ACHIEVE UNIFORM RATE OF METAL REMOVAL THE ART WHICH COMPRISES; IMMERSING THE PRODUCT TO BE POLISHED AND AN ELECTRODE SUBSTANTIALLY CONTAINING TANTALUM IN AN AQUEOUS ELECTROLYTIC POLISHING BATH CONSISTING ESSENTIALLY OF ALIPHATIC CARBOXYLIC ACID AND SULFURIC ACID; MAKING THE STAINLESS STEEL PRODUCT AND SAID ELECTRODE THE OPPOSING TERMINALS OF THE ELECTROLYTIC BATH; AND SUPPLYING ALTERNATING CURRENT TO THE BATH TERMINALS FOR POLISHING THE STEEL.
References Cited (Backward Citations)
FR556017A
Cited
US1788541A
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US2335354A
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US2424674A
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US2390282A
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US2442592A
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US2582020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |