US2801187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for obtaining superficial diffusion alloys, in particular chromium alloys
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1951-11-28
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Granted: 1957-07-30
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Expires: 1971-11-28
Abstract
No abstract record available.
Inventors
- 👤 Galmiche Philippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:15
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/06; C23C10/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE PROCESS OF FORMING ON A METAL BODY HAVING IRON AS A PRINICIPAL COMPONENT A SUPERFICIAL DIFFUSION ALLOY WITH AN ADDITION METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MOLYBDENUM, TUNGSTEN, NICKEL, COBALT, TITANIUM, ALUMINUM AND SILICON WHICH COMPRISES RAISING THE TEMPERATURE OF SAID IRON BODY TO THE TEMPERATURE AT WHICH SAID ADDITION METAL IS CAPABLE OF DIFFUSING INTO SAID
Claim 2
Dependent Claim
60 words
THE PROCESS OF FORMING ON A METAL BODY HAVING IRON AS A PRINICIPAL COMPONENT A SUPERFICIAL DIFFUSION ALLOY WITH AN ADDITION METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MOLYBDENUM, TUNGSTEN, NICKEL, COBALT, TITANIUM, ALUMINUM AND SILICON WHICH COMPRISES RAISING THE TEMPERATURE OF SAID IRON BODY TO THE TEMPERATURE AT WHICH SAID ADDITION METAL IS CAPABLE OF DIFFUSING INTO SAID
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2604395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |