US2816048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming superficial alloys of chromium on metal bodies
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1956-03-19
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Granted: 1957-12-10
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Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Galmiche Philippe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/34; C23C10/36; C23C10/38; C23C10/40; C23C10/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PROCESS OF FORMING A SUPERFICIAL ALLOY OF CHROMIUM ON A SURFACE OF A BODY HAVING AS A PRINCIPAL COMPONEBT A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT COMPRISING BRINGING CHROMIUM FLUORIDE IN THE STATE OF VAPOR IN THE PRESENCE OF HYDROGEN INTO CONTACT WITH THE WHOLE OF SAID SURFACE WHILE MAINTAINING A TEMPERATURE OF ABOVE 600*C.
Claim 2
Dependent Claim
61 words
A PROCESS OF FORMING A SUPERFICIAL ALLOY OF CHROMIUM ON A SURFACE OF A BODY HAVING AS A PRINCIPAL COMPONEBT A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL AND COBALT COMPRISING BRINGING CHROMIUM FLUORIDE IN THE STATE OF VAPOR IN THE PRESENCE OF HYDROGEN INTO CONTACT WITH THE WHOLE OF SAID SURFACE WHILE MAINTAINING A TEMPERATURE OF ABOVE 600*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |