US3231344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sintered intermetallic bodies composed of aluminum and niobium or tantalum
Assignee: Materion Brush Inc
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Filing: 1964-12-14
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Granted: 1966-01-25
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Wallace W Beaver
- 👤 Robert M Paine
- 👤 Stonehouse Albert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:09
CPC Classifications
C; C22; C22C; C22C25/00; C22C1/00; C22C1/04; C22C1/045; C22C16/00; C22C21/00; C22C27/00; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A SINTERED BODY, HAVING PREDETERMINED SIZE AND SHAPE WHICH HAVE BEEN IMPARTED TO IT BY THE CAVITY WALLS OF A DIE, AND HAVING HIGH STRENGTH AND OXIDATION RESISTANCE AT TEMPERATURES RANGING FROM ABOUT 2000*F. TO ABOUT 2700*F., AND CONSISTING ESSENTIALLY OF ALUMINUM AND A METAL M WHICH IS SELECTED FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, SAID ALUMINUM BEING PRESENT UP TO ABOUT, BUT NOT TO EXCEED SUBSTANTIALLY ITS STOICHIOMETRIC PROPORTION CORRESPONDING TO MAL3, BY WEIGHT, OF THE BODY, AND THE BALANCE BEING THE METAL M, AND SAID BODY HAVING FINE GRAIN AND SUBSTANTIALLY THEORETICAL DENSITY.
Claim 2
Dependent Claim
97 words
A SINTERED BODY, HAVING PREDETERMINED SIZE AND SHAPE WHICH HAVE BEEN IMPARTED TO IT BY THE CAVITY WALLS OF A DIE, AND HAVING HIGH STRENGTH AND OXIDATION RESISTANCE AT TEMPERATURES RANGING FROM ABOUT 2000*F. TO ABOUT 2700*F., AND CONSISTING ESSENTIALLY OF ALUMINUM AND A METAL M WHICH IS SELECTED FROM THE GROUP CONSISTING OF NIOBIUM AND TANTALUM, SAID ALUMINUM BEING PRESENT UP TO ABOUT, BUT NOT TO EXCEED SUBSTANTIALLY ITS STOICHIOMETRIC PROPORTION CORRESPONDING TO MAL3, BY WEIGHT, OF THE BODY, AND THE BALANCE BEING THE METAL M, AND SAID BODY HAVING FINE GRAIN AND SUBSTANTIALLY THEORETICAL DENSITY.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |