US3055771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating a ferrous base with aluminum
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1958-05-26
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Granted: 1962-09-25
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Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 John D Sprowl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:22
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/12; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; 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
56 words
A METHOD OF COATING FERROUS BASE METAL WITH ALUMINUM METAL COMPRISING PROVIDING A MOLTEN BATH OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM BASE ALLOYS, SAID BATH CONTAINING FROM ABOUT 0.05 TO 0.45% MAGNESIUM, IMMERSING SAID FERROUS BASE METAL IN SAID BATH AND WITHDRAWING THE COATED FERROUS BASE METAL FROM SAID BATH.
Claim 2
Independent Claim
56 words
A METHOD OF COATING FERROUS BASE METAL WITH ALUMINUM METAL COMPRISING PROVIDING A MOLTEN BATH OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM AND ALUMINUM BASE ALLOYS, SAID BATH CONTAINING FROM ABOUT 0.05 TO 0.45% MAGNESIUM, IMMERSING SAID FERROUS BASE METAL IN SAID BATH AND WITHDRAWING THE COATED FERROUS BASE METAL FROM SAID BATH.
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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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |