US2965963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum cladding of steel
Assignee: Jones and Laughlin Steel Corp
•
Filing: 1956-09-21
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Granted: 1960-12-27
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Expires: 1976-09-21
Abstract
No abstract record available.
Inventors
- 👤 Batz Walter
- 👤 James W Thurman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:03
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; B32; B32B; B32B15/00; B32B15/01; B32B15/012; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE PROCESS OF PRODUCING A BIMETALLIC ARTICLE HAVING A FERROUS METAL BASE AND A TIGHTLY ADHERENT ALUMINUM COATING, COMPRISING PROVIDING A FERROUS METAL BASE OF ORDINARY LOW-CARBON STEEL WITH A PREDETERMINED ACTIVE NITROGEN CONTENT IN THE RANGE FROM ABOUT .001% TO ABOUT .010%, COATING THE METAL BASE AT ATMOSPHERIC TEMPERATURE WITH A MECHANICALLY ADHERENT ALUMINUM COATING, AND
Claim 2
Dependent Claim
57 words
THE PROCESS OF PRODUCING A BIMETALLIC ARTICLE HAVING A FERROUS METAL BASE AND A TIGHTLY ADHERENT ALUMINUM COATING, COMPRISING PROVIDING A FERROUS METAL BASE OF ORDINARY LOW-CARBON STEEL WITH A PREDETERMINED ACTIVE NITROGEN CONTENT IN THE RANGE FROM ABOUT .001% TO ABOUT .010%, COATING THE METAL BASE AT ATMOSPHERIC TEMPERATURE WITH A MECHANICALLY ADHERENT ALUMINUM COATING, AND
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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |