Patent US3118223A successfully refreshed from Google Patents.
US3118223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength aluminum coated steel
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
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Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:31
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
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE METHOD OF PRODUCING HIGH STRENGTH ALUMINUM COATED STEEL WHICH COMPRISES HEATING A BATH OF MOLTEN ALUMINUM TO A TEMPERATURE ABOVE THE AC3 POINT OF THE STEEL, IMMERSING THE STEEL IN SUCH BATH TO FORM AN ALUMINUM COATING THEREON, WITHDRAWING THE STEEL FROM THE BATH IN THE SUBSTANTIALLY FULLY AUSTENITIC CONDITION, COOLING THE STEEL SUBSTANTIALLY TO ROOM TEMPERATURE, AND SEVERELY WORKING THE COOLED ALUMINUM-COATED STEEL TO DEVELOP THEREIN A HIGH TENSILE STRENGTH.
Claim 2
Independent Claim
72 words
THE METHOD OF PRODUCING HIGH STRENGTH ALUMINUM COATED STEEL WHICH COMPRISES HEATING A BATH OF MOLTEN ALUMINUM TO A TEMPERATURE ABOVE THE AC3 POINT OF THE STEEL, IMMERSING THE STEEL IN SUCH BATH TO FORM AN ALUMINUM COATING THEREON, WITHDRAWING THE STEEL FROM THE BATH IN THE SUBSTANTIALLY FULLY AUSTENITIC CONDITION, COOLING THE STEEL SUBSTANTIALLY TO ROOM TEMPERATURE, AND SEVERELY WORKING THE COOLED ALUMINUM-COATED STEEL TO DEVELOP THEREIN A HIGH TENSILE STRENGTH.
References Cited (Backward Citations)
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |