Patent US4880560A successfully refreshed from Google Patents.
Patent US3291577A successfully refreshed from Google Patents.
US3291577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation resistant material
Assignee: Clevite Industries Inc
•
Filing: 1963-09-12
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Granted: 1966-12-13
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Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Gail F Davies
- 👤 Raymond H Baskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:42
CPC Classifications
C; C22; C22C; C22C49/00; C22C49/02; C22C49/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12035; Y10T428/1216; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN OXIDATION RESISTANT MATERIAL HAVING A HIGH STRENGTH TO WEIGHT RATIO AT ELEVATED TEMPERATURES COMPRISING: A POWER METAL MATRIX CONSISTING ESSENTIALLY OF NICKEL AND CHROME PARTICLES; AND A PLURALITY OF FIBERS SELECTED FROM A GROUP OF REFRACTORY METALS CONSISTING OF TUNGSTEN, MOLYBDENUM, TANTALUM AND NIOBIUM AND ALLOYS THEREOF DISPERSED SUBSTANTIALLY EVENLY THROUGHOUT SAID MATRIX AND BONDED THERETO WITHOUT BEING MECHANICALLY INTERLOCKED RELATIVE TO EACH OTHER AND HAVING A DIAMETER LESS THAN ABOUT 0.020 INCH AND A LENGTH OF NOT SUBSTANTIALLY LESS THAN 0.0675 INCH.
Claim 2
Dependent Claim
84 words
AN OXIDATION RESISTANT MATERIAL HAVING A HIGH STRENGTH TO WEIGHT RATIO AT ELEVATED TEMPERATURES COMPRISING: A POWER METAL MATRIX CONSISTING ESSENTIALLY OF NICKEL AND CHROME PARTICLES; AND A PLURALITY OF FIBERS SELECTED FROM A GROUP OF REFRACTORY METALS CONSISTING OF TUNGSTEN, MOLYBDENUM, TANTALUM AND NIOBIUM AND ALLOYS THEREOF DISPERSED SUBSTANTIALLY EVENLY THROUGHOUT SAID MATRIX AND BONDED THERETO WITHOUT BEING MECHANICALLY INTERLOCKED RELATIVE TO EACH OTHER AND HAVING A DIAMETER LESS THAN ABOUT 0.020 INCH AND A LENGTH OF NOT SUBSTANTIALLY LESS THAN 0.0675 INCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |