US3073015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusion coating of metals
Assignee: Chromalloy Corp
•
Filing: 1960-05-16
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Granted: 1963-01-15
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Richard L Wachtell
- 👤 Guisto Charles A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/34; C23C10/52; C23C10/54; C23C10/56; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12931; Y10T428/12951; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A METAL ARTICLE OF THE CHARACTER DESCRIBED AND SUSCEPTIBLE TO LONG EXPOSURE TO OXIDIZING AND THERMAL SHOCK CONDITIONS AND WHICH COMPRISES AN HOMOGENEOUS BASE METAL ALLOY INCLUDING A PREPONDERANT PROPORTION OF AT LEAST ONE OF THE METALS NICKEL AND COBALT, AND WHICH ARTICLE IS ENCLOSED WITHIN AN OUTER LAYER DIFFUSION COATED CASE COMPRISING CHROMIUM AND ALUMINUM AND SILICON, SAID OUTER LAYER DIFFUSION COATED CASE BEING AT LEAST ABOUT 0.001"-0.002" THICK OVER SAID ARTICLE.
References Cited (Backward Citations)
GB586241A
Cited
US2809127A
Cited
US2612442A
Cited
GB722797A
Cited
US2801187A
Cited
US2811466A
Cited
US2955958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |