Patent US3071489A successfully refreshed from Google Patents.
US3071489A
Expired / Lapsed
US
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Process of flame spraying a tungsten carbide-chromium carbide-nickel coating, and article produced thereby
Assignee: Union Carbide Corp
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Filing: 1958-05-28
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Granted: 1963-01-01
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Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 John F Pelton
- 👤 Jr John M Koffskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:34
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD OF APPLYING A HIGH TEMPERATURE EROSION RESISTENT COATING ON A BODY TO BE COATED WHICH COMPRISES INTRODUCING POWER COMPRISING ABOUT 70% BY WEIGHT TUNGSTEN CARBIDE, 24% BY WEIGHT CHROMIUM CARBIDE, AND 6% BY WEIGHT NICKEL INTO A HIGH VELOCITY, HIGH TEMPERATURE GAS STREAM AND DIRECTING SUCH POWER LADEN GAS STREAM AGAINST SAID BODY TO BE COATED.
Claim 2
Independent Claim
58 words
A METHOD OF APPLYING A HIGH TEMPERATURE EROSION RESISTENT COATING ON A BODY TO BE COATED WHICH COMPRISES INTRODUCING POWER COMPRISING ABOUT 70% BY WEIGHT TUNGSTEN CARBIDE, 24% BY WEIGHT CHROMIUM CARBIDE, AND 6% BY WEIGHT NICKEL INTO A HIGH VELOCITY, HIGH TEMPERATURE GAS STREAM AND DIRECTING SUCH POWER LADEN GAS STREAM AGAINST SAID BODY TO BE COATED.
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |