US2947639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for immersion tin plating of aluminum and aluminum alloys
Assignee: Old Carco LLC
•
Filing: 1958-05-19
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Granted: 1960-08-02
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Expires: 1978-05-19
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Balden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:59
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AN AQUEOUS IMMERSION TIN COATING BATH FOR ALUMINUM AND ALUMINUM ALLOYS CONSISTING ESSENTIALLY OF WATER, ALKALI METAL STANNATE AND ALKALI METAL POLYPHOSPHATE IN AMOUNT BETWEEN 1/4 TO 3 OZ. BY WEIGHT THEREOF FOR EACH 6 OUNCES OF STANNATE.
Claim 2
Dependent Claim
38 words
AN AQUEOUS IMMERSION TIN COATING BATH FOR ALUMINUM AND ALUMINUM ALLOYS CONSISTING ESSENTIALLY OF WATER, ALKALI METAL STANNATE AND ALKALI METAL POLYPHOSPHATE IN AMOUNT BETWEEN 1/4 TO 3 OZ. BY WEIGHT THEREOF FOR EACH 6 OUNCES OF STANNATE.
References Cited (Backward Citations)
US2377606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |