Patent US4836226A successfully refreshed from Google Patents.
Patent US3431141A successfully refreshed from Google Patents.
US3431141A
Expired / Lapsed
US
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High temperature oxidation resistant articles
Assignee: Cabot Corp
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Filing: 1966-02-18
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Granted: 1969-03-04
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 James E Eorgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:34
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; C; C01; C01B; C01B35/00; C01B35/02; C01B35/04; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/10; C23C4/18; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12139; Y10T428/12493; Y10T428/12639; Y10T428/12771; Y10T428/12806; Y10T428/12812; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A COMPOSITE REFRACTORY ARTICLE COMPRISING A REFRACTORY METAL BASE MATERIAL THE SURFACE OF WHICH IS PROTECTED AGAINST HIGH TEMPERATURE OXIDATION BY A SUBSTANTIALLY IMPERVIOUS COATING OF AN OXIDATION RESISTANT MATERIAL COMPRISING FROM ABOUT 85 TO 99% BY WEIGHT OF MIXED ZIRCONIUM DIBORIDE AND TITANIUM DIBORIDE WHEREIN THE WEIGHT RATIO OF ZRB2 TO TIB2 IS BETWEEN ABOUT 1:3 AND 3:1, AND FROM ABOUT 1 TO 15% BY WEIGHT OF SILICON.
Claim 2
Dependent Claim
69 words
A COMPOSITE REFRACTORY ARTICLE COMPRISING A REFRACTORY METAL BASE MATERIAL THE SURFACE OF WHICH IS PROTECTED AGAINST HIGH TEMPERATURE OXIDATION BY A SUBSTANTIALLY IMPERVIOUS COATING OF AN OXIDATION RESISTANT MATERIAL COMPRISING FROM ABOUT 85 TO 99% BY WEIGHT OF MIXED ZIRCONIUM DIBORIDE AND TITANIUM DIBORIDE WHEREIN THE WEIGHT RATIO OF ZRB2 TO TIB2 IS BETWEEN ABOUT 1:3 AND 3:1, AND FROM ABOUT 1 TO 15% BY WEIGHT OF SILICON.
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |