US2565768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum coating of ferrous metal and resulting product
Assignee: United States Steel Corp
•
Filing: 1948-04-02
•
Granted: 1951-08-28
•
Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel O Gittings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/12; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12764; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE METHOD OF HOT-DIP COATING FERROUS BASE METAL WITH ALUMINUM COMPRISING ADDING BERYLLIUM IN EFFECTIVE AMOUNTS FROM ABOUT .1% UP TO 2% TO THE MOLTEN COATING BATH, MAINTAINING THE MOLTEN BATH AT A TEMPERATURE BELOW 1300* F. AND DIPPING FERROUS BASE METAL HAVING CLEANED SURFACES THEREIN.
Claim 2
Dependent Claim
35 words
A HOT-DIPPED COATED PRODUCT COMPRISING A FERROUS METAL BASE AND AN OUTER LAYER OF BERYLLIUM-CONTAINING ALUMINUM HAVING A THIN RELATIVELY SOFT BERYLLIUM-CONTAINING IRON ALUMINUM ALLOY LAYER THEREBETWEEN AND RESULTING FROM THE PROCESS OF CLAIM 4.
References Cited (Backward Citations)
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US1254987A
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US1515082A
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US1706130A
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US1764132A
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US1716943A
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US2135652A
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US2394546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |