US2818360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the aluminum cladding of ferrous base metal and product thereof
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1952-03-19
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Granted: 1957-12-31
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Expires: 1972-03-19
Abstract
No abstract record available.
Inventors
- 👤 William J Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:47
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE PROCESS OF CLADDING A FERROUS BASE METAL WITH ALUMINUM COMPRISING ROUGHENING THE BASE METAL, PROVIDING BETWEEN BASE METAL AND ALUMINUM A PHOSPHATECONTAINING FILM, COLD REDUCING TOGETHER THE BASE METAL AND ALUMINUM, AND HEAT TREATING THE COLD REDUCED PRODUCT FOR A TIME AND AT A TEMPERATURE SUFFICIENT TO RECRYSTALLIZE THE FERROUS BASE METAL BUT NOT EXCEEDING THE TEMPERATURE DETERMINED TO CORRESPOND TO THE SAID TIME FROM THE CONTINUOUS CURVE OF FIG 1.
Claim 2
Dependent Claim
72 words
THE PROCESS OF CLADDING A FERROUS BASE METAL WITH ALUMINUM COMPRISING ROUGHENING THE BASE METAL, PROVIDING BETWEEN BASE METAL AND ALUMINUM A PHOSPHATECONTAINING FILM, COLD REDUCING TOGETHER THE BASE METAL AND ALUMINUM, AND HEAT TREATING THE COLD REDUCED PRODUCT FOR A TIME AND AT A TEMPERATURE SUFFICIENT TO RECRYSTALLIZE THE FERROUS BASE METAL BUT NOT EXCEEDING THE TEMPERATURE DETERMINED TO CORRESPOND TO THE SAID TIME FROM THE CONTINUOUS CURVE OF FIG 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |