US2624684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for coating aluminum with tin
Assignee: Philadelphia Rust-Proof Co
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Filing: 1951-12-03
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Granted: 1953-01-06
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Expires: 1971-12-03
Abstract
No abstract record available.
Inventors
- 👤 Heiman Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/42; C25D5/44; C23; C23C; C23C18/00; C23C18/16; C23C18/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF COATING ALUMINUM ARTICLES WITH AN ADHERENT, SMOOTH DEPOSIT OF TIN WHICH COMPRISES CLEANING THE ALUMINUM ARTICLE TO REMOVE SUBSTANTIALLY ALL OF THE SURFACE OXIDE FILM AND IMMERSING THE CLEANED ALUMINUM ARTICLE IN AN AQUEOUS BATH CONSISTING ESSENTIALLY OF WATER AN ORGANIC ADDITION AGENT CONSISTING ESSENTIALLY OF A WATER-SOLUBLE GLUE AND A HYDROXY AROMATIC COMPOUND, A WATER-SOLUBLE TIN SALT AND A WATERSOLUBLE FLUORIDE, THE CONCENTRATION OF TIN SALT IN SAID BATH IN THE RASNGE OF 0.05 N TO 7.25 N AND THE CONCENTRATION OF FLUORIDE BEING IN THE RANGE OF 0.01 N TO 14 N.
Claim 2
Independent Claim
97 words
THE METHOD OF COATING ALUMINUM ARTICLES WITH AN ADHERENT, SMOOTH DEPOSIT OF TIN WHICH COMPRISES CLEANING THE ALUMINUM ARTICLE TO REMOVE SUBSTANTIALLY ALL OF THE SURFACE OXIDE FILM AND IMMERSING THE CLEANED ALUMINUM ARTICLE IN AN AQUEOUS BATH CONSISTING ESSENTIALLY OF WATER AN ORGANIC ADDITION AGENT CONSISTING ESSENTIALLY OF A WATER-SOLUBLE GLUE AND A HYDROXY AROMATIC COMPOUND, A WATER-SOLUBLE TIN SALT AND A WATERSOLUBLE FLUORIDE, THE CONCENTRATION OF TIN SALT IN SAID BATH IN THE RASNGE OF 0.05 N TO 7.25 N AND THE CONCENTRATION OF FLUORIDE BEING IN THE RANGE OF 0.01 N TO 14 N.
References Cited (Backward Citations)
US2580773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |