US2940870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of hot dip galvanizing a ferrous metal
Assignee: Hanson Van Winkle Munning Co
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Filing: 1959-02-19
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Granted: 1960-06-14
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Expires: 1979-02-19
Abstract
No abstract record available.
Inventors
- 👤 Allen T Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF GALVANIZING A FERROUS METAL ARTICLE WHICH COMPRISES WETTING THE ARTICLE WITH AN AQUEOUS AMMONIACAL ZINC CHLORIDE SOLUTION, DRYING THE ARTICLE, INTRODUCING THE DRIED ARTICLE INTO A BATH OF MOLTEN ZINC THROUGH A MOLTEN SALT BLANKET FLOATING THEREON, SAID SALT BLANKET BEING COMPOSED PREDOMINANTLY OF 40% TO 80% BY WEIGHT OF ZINC CHLORIDE AND 15% TO 45% BY WEIGHT OF POTASSIUM CHLORIDE, SAID SALT BLANKET HAVING A MELTING POINT BELOW 700*F. AND BEING AND REMAINING SUBSTAN-
Claim 2
Independent Claim
78 words
THE METHOD OF GALVANIZING A FERROUS METAL ARTICLE WHICH COMPRISES WETTING THE ARTICLE WITH AN AQUEOUS AMMONIACAL ZINC CHLORIDE SOLUTION, DRYING THE ARTICLE, INTRODUCING THE DRIED ARTICLE INTO A BATH OF MOLTEN ZINC THROUGH A MOLTEN SALT BLANKET FLOATING THEREON, SAID SALT BLANKET BEING COMPOSED PREDOMINANTLY OF 40% TO 80% BY WEIGHT OF ZINC CHLORIDE AND 15% TO 45% BY WEIGHT OF POTASSIUM CHLORIDE, SAID SALT BLANKET HAVING A MELTING POINT BELOW 700*F. AND BEING AND REMAINING SUBSTAN-
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |