Patent US3029162A successfully refreshed from Google Patents.
US3029162A
Expired / Lapsed
US
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Process for the production of metallic borides on the surface of metals
Assignee: Chromalloy Corp
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Filing: 1959-05-21
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Granted: 1962-04-10
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Expires: 1979-05-21
Abstract
No abstract record available.
Inventors
- 👤 Samuel Robert Lionel
- 👤 Lockington Norman Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:07
CPC Classifications
C; C23; C23C; C23C12/00; C23C10/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
IN A PROCESS FOR THE DIFFUSION COATING OF BORON INTO A SURFACE OF METAL ARTICLES OF THE CHARACTER DESCRIBED, WHICH COMPRISES THE STEPS OF DIFFUSION COATING INTO SAID METAL ARTICLES A METALLIC MATERIAL OTHER THAN BORON AND SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, SILICON, ALUMINUM, VANADIUM, TITANIUM, ZIRCONIUM, MOLYBDENUM, TUNGSTEN, COLUMBIUM, AND TANTALUM, THEREAFTER HEATING SAID THUS COATED METAL ARTICLE IN A COATING PACK INCLUDING A SOURCE OF BORON AND A VOLATILIZABLE HALIDE AS A CARRIER FOR SAID BORON FOR EFFECTING DIFFUSION COATING OF SAID BORON INTO THE SURFACE OF SAID COATED METAL ARTICLE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
US2930106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |