US2855351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for electrolytically producing oxide coating on aluminum and aluminum alloys
Assignee: Sanford Process Co Inc
•
Filing: 1954-09-20
•
Granted: 1958-10-07
•
Expires: 1974-09-20
Abstract
No abstract record available.
Inventors
- 👤 Ernst Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:42
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS OF COATING ALUMUNUM AND ALUMINUM ALLOY ARTICLES WITH A COATING OF OXIDE OF ALUMINUM,, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH AN ELECTROLYTIC CELL WITH SAID ARTICLE FORMING THE ANODE, SAID CELL CONTAINING AN ELECTROLYTE COMPRISING AN AQUEOUS SOLUTION OF AN ELECTRO ANODIZING ACID AS THE MAJOR ACID COMPONENT AND A COMPOUND OF THE GROUP CONSISTING OF THOSE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
64 words
A PROCESS OF COATING ALUMUNUM AND ALUMINUM ALLOY ARTICLES WITH A COATING OF OXIDE OF ALUMINUM,, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH AN ELECTROLYTIC CELL WITH SAID ARTICLE FORMING THE ANODE, SAID CELL CONTAINING AN ELECTROLYTE COMPRISING AN AQUEOUS SOLUTION OF AN ELECTRO ANODIZING ACID AS THE MAJOR ACID COMPONENT AND A COMPOUND OF THE GROUP CONSISTING OF THOSE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US672913A
Cited
US2019994A
Cited
US2233785A
Cited
US2550388A
Cited
US2692851A
Cited
US2692852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |