Patent US3053689A successfully refreshed from Google Patents.
US3053689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating austenitic steel with chromium alloy coatings
Assignee: Motors Liquidation Co
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Filing: 1958-07-09
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Granted: 1962-09-11
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Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert A Shoudy
- 👤 Eugene G Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:50
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/18; B; B23; B23K; B23K35/00; B23K35/001; B23K35/004; B23K35/22; B23K35/24; B23K35/30; B23K35/3033; B23K35/304; C23C4/02; C23C4/04; C23C4/06; C23C4/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A PROCESS FOR PROVIDING AN AUSTENITIC STEEL ARTICLE WITH A HARD, HIGH HOT STRENGTH AND HIGH WEAR RESISTANT AND OXIDATION RESISTANT SURFACE, THE STEPS COMPRISING APPLYING IN PARTICULATE FORM A FIRST COATING OF A NICKEL-CHROMIUM ALLOY INCLUDING MINOR PROPORTIONS OF SILICON, BORON, AND CARBON AS ESSENTIAL CONSTITUENTS AND HAVING A MELTING POINT LESS THAN THE SOFTENING TEMPERATURE OF SAID STEEL ARTICLE OVER SAID SURFACE; APPLYING AN PARTICULATE FROM A SECOND COATING OF A COBALT-CHROMIUM ALLOY INCLUDING MINOR PROPORTIONS OF TUNGSTEN AND CARBON AS ESSENTIAL CONSTITUENTS HAVING A MELTING POINT HIGHER THAN THAT OF THE METAL OF SAID FIRST COATING OVER SAID FIRST COATING; AND THEREAFTER HEATING SAID FIRST COATING TO AT LEAST ITS MELTING TEMEPERATURE FOR A TIME SUFFICIENT FOR SAID FIRST COATING TO FUSE AND WET SAID SECOND COATING AND SAID SURFACE TO BOND SAID SECOND COATING TO SAID SURFACE THROUGH SAID FIRST COATING.
Claim 2
Dependent Claim
145 words
A PROCESS FOR PROVIDING AN AUSTENITIC STEEL ARTICLE WITH A HARD, HIGH HOT STRENGTH AND HIGH WEAR RESISTANT AND OXIDATION RESISTANT SURFACE, THE STEPS COMPRISING APPLYING IN PARTICULATE FORM A FIRST COATING OF A NICKEL-CHROMIUM ALLOY INCLUDING MINOR PROPORTIONS OF SILICON, BORON, AND CARBON AS ESSENTIAL CONSTITUENTS AND HAVING A MELTING POINT LESS THAN THE SOFTENING TEMPERATURE OF SAID STEEL ARTICLE OVER SAID SURFACE; APPLYING AN PARTICULATE FROM A SECOND COATING OF A COBALT-CHROMIUM ALLOY INCLUDING MINOR PROPORTIONS OF TUNGSTEN AND CARBON AS ESSENTIAL CONSTITUENTS HAVING A MELTING POINT HIGHER THAN THAT OF THE METAL OF SAID FIRST COATING OVER SAID FIRST COATING; AND THEREAFTER HEATING SAID FIRST COATING TO AT LEAST ITS MELTING TEMEPERATURE FOR A TIME SUFFICIENT FOR SAID FIRST COATING TO FUSE AND WET SAID SECOND COATING AND SAID SURFACE TO BOND SAID SECOND COATING TO SAID SURFACE THROUGH SAID FIRST COATING.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |