US3215512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite refractory articles
Assignee: Texas Instruments Inc
•
Filing: 1961-06-09
•
Granted: 1965-11-02
•
Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 Brian C Coad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:20
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/282; B; B32; B32B; B32B15/00; B32B15/01; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/937; Y10S428/939; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12431; Y10T428/12438; Y10T428/12493; Y10T428/12632; Y10T428/12674; Y10T428/12736; Y10T428/12771; Y10T428/12778; Y10T428/12986; Y10T428/249921; Y10T428/249922; Y10T428/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A COMPOSITE REFRACTORY ARTICLE FOR USE IN HIGH TEMPERATURE ATMOSPHERES COMPRISING A PLURALITY OF INTERFACIALLY METALLURGICALLY BONDED LOOPS EACH OF WHICH ENCOMPASSES AT LEAST 360 ANGULAR DEGREES, EACH LOOP CONSISTING OF SEVERAL LAYERS OF METAL AT LEAST ONE OF WHICH IS A REFRACTORY METAL SELECTED FROM METALS IN GROUPS CONSISTING OF IV-B, V-B, VI-B AND VII-B OF THE PERIODIC TABLE AND ALLOYS THEREOF WHICH ARE HIGHLY REACTIVE IN AN ATMOSPHERE AT HIGH TEMPERATURES INCLUDING OXYGEN AND NITROGEN, AND AT LEAST ONE PROTECTIVE LAYER OF A SOLID MATERIAL WHICH IS SUBSTANTIALLY NONREACTIVE AT HIGH TEMPERATURES IN AN ATMOSPHERE INCLUDING OXYGEN AND NITROGEN, SAID PROTECTIVE LAYER OF MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF COBALT, NICKEL, NICKEL BASE ALLOYS, CHROMIUM, PLATINUM, SILICON, SILICIDES, OXYGEN-RESISTANT CERAMICS AND INTERMETALLIC COMPOUNDS OF ALUMINUM WITH SAID METALS IN SAID GROUPS IN THE PERIODIC TABLE.
Claim 2
Dependent Claim
139 words
A COMPOSITE REFRACTORY ARTICLE FOR USE IN HIGH TEMPERATURE ATMOSPHERES COMPRISING A PLURALITY OF INTERFACIALLY METALLURGICALLY BONDED LOOPS EACH OF WHICH ENCOMPASSES AT LEAST 360 ANGULAR DEGREES, EACH LOOP CONSISTING OF SEVERAL LAYERS OF METAL AT LEAST ONE OF WHICH IS A REFRACTORY METAL SELECTED FROM METALS IN GROUPS CONSISTING OF IV-B, V-B, VI-B AND VII-B OF THE PERIODIC TABLE AND ALLOYS THEREOF WHICH ARE HIGHLY REACTIVE IN AN ATMOSPHERE AT HIGH TEMPERATURES INCLUDING OXYGEN AND NITROGEN, AND AT LEAST ONE PROTECTIVE LAYER OF A SOLID MATERIAL WHICH IS SUBSTANTIALLY NONREACTIVE AT HIGH TEMPERATURES IN AN ATMOSPHERE INCLUDING OXYGEN AND NITROGEN, SAID PROTECTIVE LAYER OF MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF COBALT, NICKEL, NICKEL BASE ALLOYS, CHROMIUM, PLATINUM, SILICON, SILICIDES, OXYGEN-RESISTANT CERAMICS AND INTERMETALLIC COMPOUNDS OF ALUMINUM WITH SAID METALS IN SAID GROUPS IN THE PERIODIC TABLE.
References Cited (Backward Citations)
US1769622A
Cited
US1745173A
Cited
US2258327A
Cited
US2456458A
Cited
US2721952A
Cited
US2746134A
Cited
US2982017A
Cited
US2946119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |