US3184292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for diffusion coating refractory metals and product produced thereby
Assignee: EIDP Inc
•
Filing: 1964-07-08
•
Granted: 1965-05-18
•
Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 Argyriades Dimitri
- 👤 Giles F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:23
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/18; C23C10/20; C23C10/22; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12458; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/12771; Y10T428/12778; Y10T428/12806; Y10T428/12812; Y10T428/12819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A REFRACTORY METAL ARTICLE HAVING AN OXIDATION RESISTANT COATING COMPRISING A REFRACTORY METAL ALLOY CONTAINING AT LEAST ONE DIFFUSED ELEMENT SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, SILICON, AND TRANSITION ELEMENTS HAVING 1 TO 9 D ELECTRONS, SAID COATING HAVING INCREASING CONCENTRATIONS OF SAID DIFFUSED ELEMENTS AND A TRANSFER AGENT TOWARD THE OUTER PORTION THEREOF, SAID TRANSFER AGENT BEING SELECTED FROM THE GROUP CONSISTING OF CALCIUM, STRONTIUM, AND BARIUM.
Claim 2
Dependent Claim
69 words
A REFRACTORY METAL ARTICLE HAVING AN OXIDATION RESISTANT COATING COMPRISING A REFRACTORY METAL ALLOY CONTAINING AT LEAST ONE DIFFUSED ELEMENT SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, SILICON, AND TRANSITION ELEMENTS HAVING 1 TO 9 D ELECTRONS, SAID COATING HAVING INCREASING CONCENTRATIONS OF SAID DIFFUSED ELEMENTS AND A TRANSFER AGENT TOWARD THE OUTER PORTION THEREOF, SAID TRANSFER AGENT BEING SELECTED FROM THE GROUP CONSISTING OF CALCIUM, STRONTIUM, AND BARIUM.
References Cited (Backward Citations)
US1683086A
Cited
US2257988A
Cited
US2223977A
Cited
GB574092A
Cited
US2771666A
Cited
US2525263A
Cited
US2686735A
Cited
US2788289A
Cited
US3055088A
Cited
US3061462A
Cited
US3069288A
Cited
US3078554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |