US2543365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of tin coating ferrous metal articles and bath therefor
Assignee: American Steel and Wire Company of New Jersey
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Filing: 1945-06-20
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Granted: 1951-02-27
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Expires: 1965-06-20
Abstract
No abstract record available.
Inventors
- 👤 Arch W Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:11
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A PROCESS OF COATING FERROUS ARTICLES WITH TIN, THE STEPS INCLUDING IMMERSING THE ARTICLES IN AN ACIDIFIED AQUEOUS SOLUTION OF A COPPER SALT, THEREBY CAUSING A LAYER OF COPPER TO BE DEPOSITED ON THE ARTICLE, THEREAFTER IMMERSING THE COPPERCOATED ARTICLES IN A BATH OF AN AQUEOUS SOLUTION OF A WATER-SOLUBLE STANNOUS SALT AND ZINC CHLORIDE, HAVING A QUANTITY OF METALLIC TIN THEREIN AND HOLDING THE ARTICLES IN THE SAID BATH UNTIL THE COPPER COATING THEREOF IS SUBSTANTIALLY ENTIRELY REPLACED BY TIN, THE METALLIC TIN IN THE BATH REPLACING THE TIN PLATED OUT OF THE BATH.
Claim 2
Dependent Claim
96 words
IN A PROCESS OF COATING FERROUS ARTICLES WITH TIN, THE STEPS INCLUDING IMMERSING THE ARTICLES IN AN ACIDIFIED AQUEOUS SOLUTION OF A COPPER SALT, THEREBY CAUSING A LAYER OF COPPER TO BE DEPOSITED ON THE ARTICLE, THEREAFTER IMMERSING THE COPPERCOATED ARTICLES IN A BATH OF AN AQUEOUS SOLUTION OF A WATER-SOLUBLE STANNOUS SALT AND ZINC CHLORIDE, HAVING A QUANTITY OF METALLIC TIN THEREIN AND HOLDING THE ARTICLES IN THE SAID BATH UNTIL THE COPPER COATING THEREOF IS SUBSTANTIALLY ENTIRELY REPLACED BY TIN, THE METALLIC TIN IN THE BATH REPLACING THE TIN PLATED OUT OF THE BATH.
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) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |