US2570906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating metallic objects with other metals
Assignee: Individual
•
Filing: 1946-12-21
•
Granted: 1951-10-09
•
Expires: 1966-12-21
Abstract
No abstract record available.
Inventors
- 👤 Alferieff Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/003; C23C2/0035; C23C2/0038; C23C2/004; C23C2/02; C23C2/022; C23C2/0222; C23C2/0224; C23C2/024; C23C2/26; C23C2/28; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS OF COATING METALLIC BODIES WITH A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZINC, LEAD, CADMIUM AND TIN WHICH COMPRISES HEATING THE SAID BODIES TO A TEMPERATURE WITHIN THE RANGE 1470*-1670* F. IN THE PRESENCE OF A REDUCING ATMOSPHERE CONSISTING PREDOMINANTLY OF HYDROGEN AND CONTAINING FROM 2 TO 30% WATER VAPOR, THEN EXPELLING OCCLUDED GASES FROM SAID BODIES BY HEATING THEM TO AT LEAST THE TEMPERATURE ATTAINED IN SAID FIRST HEATING STEP WHILE IN DIRECT CONTACT WITH AN INERT ATMOSPHERE CONSISTING PREDOMINANTLY OF NITROGEN, AND WHILE MAINTAINING SAID BODIES WHOLLY PROTECTED BY AN INERT ATMOSPHERE CONSISTING PREDOMINANTLY OF NITROGEN AND SUBSTANTIALLY FREE FROM WATER VAPOR, COOLING THEM TO A TEMPERATURE NOT EXCEEDING THE TEMPERATURE OF THE MOLTEN BATH OF THE COATING METAL, AND THEN PASSING THEM INTO SAID COATING METAL BATH.
Claim 2
Dependent Claim
134 words
A PROCESS OF COATING METALLIC BODIES WITH A METAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, ZINC, LEAD, CADMIUM AND TIN WHICH COMPRISES HEATING THE SAID BODIES TO A TEMPERATURE WITHIN THE RANGE 1470*-1670* F. IN THE PRESENCE OF A REDUCING ATMOSPHERE CONSISTING PREDOMINANTLY OF HYDROGEN AND CONTAINING FROM 2 TO 30% WATER VAPOR, THEN EXPELLING OCCLUDED GASES FROM SAID BODIES BY HEATING THEM TO AT LEAST THE TEMPERATURE ATTAINED IN SAID FIRST HEATING STEP WHILE IN DIRECT CONTACT WITH AN INERT ATMOSPHERE CONSISTING PREDOMINANTLY OF NITROGEN, AND WHILE MAINTAINING SAID BODIES WHOLLY PROTECTED BY AN INERT ATMOSPHERE CONSISTING PREDOMINANTLY OF NITROGEN AND SUBSTANTIALLY FREE FROM WATER VAPOR, COOLING THEM TO A TEMPERATURE NOT EXCEEDING THE TEMPERATURE OF THE MOLTEN BATH OF THE COATING METAL, AND THEN PASSING THEM INTO SAID COATING METAL BATH.
References Cited (Backward Citations)
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Cited
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US2223499A
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US2197622A
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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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |