Patent US2859158A successfully refreshed from Google Patents.
US2859158A
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Method of making a nickel-chromium diffusion alloy
Assignee: Individual
•
Filing: 1957-01-31
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Granted: 1958-11-04
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Expires: 1977-01-31
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Schaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:23
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50; C25D5/10; C25D5/12; C25D5/14; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR COATING MOLYBDENUM WITH A DIFFUSION ALLOY WHICH CONSISTS OF DEPOSITING SEQUENTLY A LAYER OF CHROMIUM ABOUT .00025 INCH THICK AND A LAYER OF NICKEL ABOUT .00075 INCH THICK, REPEATING SAID SEQUENCE OF DEPOSITIONS A PLURALITY OF TIMES, AND THEN HEATING THE COATED MOLYBDENUM FOR 4 HOURS AT A TEMPERATURE ABOVE 980*C. AND SUBSTANTIALLY BELOW THE MELTING POINT OF THE EUTECTIC OF THE METALS.
Claim 2
Dependent Claim
66 words
A PROCESS FOR COATING MOLYBDENUM WITH A DIFFUSION ALLOY WHICH CONSISTS OF DEPOSITING SEQUENTLY A LAYER OF CHROMIUM ABOUT .00025 INCH THICK AND A LAYER OF NICKEL ABOUT .00075 INCH THICK, REPEATING SAID SEQUENCE OF DEPOSITIONS A PLURALITY OF TIMES, AND THEN HEATING THE COATED MOLYBDENUM FOR 4 HOURS AT A TEMPERATURE ABOVE 980*C. AND SUBSTANTIALLY BELOW THE MELTING POINT OF THE EUTECTIC OF THE METALS.
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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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |