US3048547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for cleaning aluminum surfaces
Assignee: Purex Corp Ltd
•
Filing: 1958-06-23
•
Granted: 1962-08-07
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Tro J Vosbigian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; C11D3/16; C11D3/26; C11D3/30; C23; C23G; C23G1/00; C23G1/14; C23G1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A COMPOSITION FOR CLEANING ALUMINUM SURFACES IN THE FORM OF A HYDROCARBON-FREE AQUEOUS SOLUTION CONSISTING ESSENTAILLY BY WEIGHT OF 3 TO 25 PARTS OF A WATER SOLUBLE, ALIPHATIC AMINE OF PH OF AT LEAST 12.5 WHEN DISSOLVED BY WEIGHT OF THE SOLUTION AT A CONCENTRATION OF 25% IN WATER; A CHROMATE ION SUPPLIED BY A MEMBER OF THE CLASS CONSISTING OF WATER SOLUBLE CHROMATE AND DICHAROMATE, AND CHROMIC ACID, IN THE RANGE OF 1 PART OF CHROMATE ION TO 5 PARTS OF AMINE TO 1 PART OF CHROMATE ION TO 50 PARTS OF AMINE; AND A MAJOR PORTION OF WATER; BASED ON 100 PARTS BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
109 words
A COMPOSITION FOR CLEANING ALUMINUM SURFACES IN THE FORM OF A HYDROCARBON-FREE AQUEOUS SOLUTION CONSISTING ESSENTAILLY BY WEIGHT OF 3 TO 25 PARTS OF A WATER SOLUBLE, ALIPHATIC AMINE OF PH OF AT LEAST 12.5 WHEN DISSOLVED BY WEIGHT OF THE SOLUTION AT A CONCENTRATION OF 25% IN WATER; A CHROMATE ION SUPPLIED BY A MEMBER OF THE CLASS CONSISTING OF WATER SOLUBLE CHROMATE AND DICHAROMATE, AND CHROMIC ACID, IN THE RANGE OF 1 PART OF CHROMATE ION TO 5 PARTS OF AMINE TO 1 PART OF CHROMATE ION TO 50 PARTS OF AMINE; AND A MAJOR PORTION OF WATER; BASED ON 100 PARTS BY WEIGHT OF THE COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |