US2784155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic process for removing machining burrs from metal articles
Assignee: Eastman Kodak Co
•
Filing: 1954-04-12
•
Granted: 1957-03-05
•
Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang A Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:57
CPC Classifications
C; C25; C25F; C25F3/00; B; B23; B23H; B23H9/00; B23H9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF REMOVING BURRS FROM APERATURES IN A NON-FERROUS METAL ARTICLE WHICH COMPRISES MAKING SAID ARTICLE THE ANODE IN AN ELECTROLYTE CONTAINING A SATURATED SODIUM CHLORIDE SOLUTION AND 1/2 OUNCE PER GALLON OF METHYL CELLULOSE, MAINTAINING THE TEMPERATURE OF SAID ELECTROLYTE AT 70-75*F., PROVIDING A CATHODE OF A NONFERROUS METAL, AND MAINTAINING A CURRENT DENSITY OF FROM 20 TO 40 AMPERES PER SQUARE FOOT OF ANODE AREA FOR A PERIOD OF AT LEAST 20 MINUTES.
Claim 2
Independent Claim
76 words
THE METHOD OF REMOVING BURRS FROM APERATURES IN A NON-FERROUS METAL ARTICLE WHICH COMPRISES MAKING SAID ARTICLE THE ANODE IN AN ELECTROLYTE CONTAINING A SATURATED SODIUM CHLORIDE SOLUTION AND 1/2 OUNCE PER GALLON OF METHYL CELLULOSE, MAINTAINING THE TEMPERATURE OF SAID ELECTROLYTE AT 70-75*F., PROVIDING A CATHODE OF A NONFERROUS METAL, AND MAINTAINING A CURRENT DENSITY OF FROM 20 TO 40 AMPERES PER SQUARE FOOT OF ANODE AREA FOR A PERIOD OF AT LEAST 20 MINUTES.
References Cited (Backward Citations)
US2549946A
Cited
US2590927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |