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US3881918A
Expired / Lapsed
US
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Cobalt-base superalloy
Assignee: Owens Corning
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Filing: 1974-05-09
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Granted: 1975-05-06
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Expires: 1994-05-09
Abstract
Abstract A cobalt-base superalloy, especially suitable for use in high temperature oxidizing environments is provided by combining constituent elements at defined amounts to form a composition which provides a balance of properties to the alloy especially high stress rupture strength and oxidation resistance at temperatures of at least 2,000*F.
Inventors
- 👤 Darryl J Costin
- 👤 James B Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:16
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
23 words
HIGH TEMPERATURE, LOAD-BEARING OXIDATION RESISTANT APPARATUS IN THE FORM OF VACUUM INVESTMENT CASTINGS, SAID APPARATUS BEING FABRICATED FROM AN ALLOY CONSISTING ESSENTIALLY OF:
Claim 2
Dependent Claim
23 words
HIGH TEMPERATURE, LOAD-BEARING OXIDATION RESISTANT APPARATUS IN THE FORM OF VACUUM INVESTMENT CASTINGS, SAID APPARATUS BEING FABRICATED FROM AN ALLOY CONSISTING ESSENTIALLY OF:
Claim 3
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the form of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 4
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the form of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 5
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the forM of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 6
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the forM of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 7
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the form of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 8
Dependent Claim
23 words
High temperature, load-bearing, oxidation resistant apparatus in the form of vacuum investment casting, said apparatus being fabricated from an alloy consisting essentially of:
Claim 9
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 10
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 11
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 12
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 13
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 14
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 15
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
Claim 16
Dependent Claim
10 words
An alloy suitable for vacuum investment casting, consisting essentially of:
References Cited (Backward Citations)
US3418111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |