Patent US4717971A successfully refreshed from Google Patents.
Patent US2839819A successfully refreshed from Google Patents.
US2839819A
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Weldable sintered molybdenum
Assignee: Westinghouse Electric Corp
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Filing: 1957-07-12
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Granted: 1958-06-24
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Expires: 1977-07-12
Abstract
No abstract record available.
Inventors
- 👤 William N Platte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/327; C; C22; C22C; C22C27/00; C22C27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A SINTERED MOLYBDENUM COMPACT THAT, AS PREPARED, CAN BE ARE WELDED THAT CONSISTS OF THE COMPACT PREPARED BY BLENDING WITHIN A HYDROGEN-REDUCED MOLYBDENUM POWDER ABOUT 0.2 TO 0.5 PERCENT BY WEIGHT OF TITANIUM POWDER, SAID TITANIUM POWDER BEING ADMIXED WITH WATER IN AN AMOUNT OF ABOUT 15 TO 25 PERCENT BY WEIGHT BASED ON THE TITANIUM, PRESSING THE POWDER MIXTURE TO FORM A COMPACT, AND VACUUM SINTERING THE RESULTANT COMPACT AT AN ELEVATED TEMPERATURE OF ABOVE ABOUT 1700*C. BUT BELOW THE MELTING POINT OF SAID MIXTURE.
Claim 2
Dependent Claim
86 words
A SINTERED MOLYBDENUM COMPACT THAT, AS PREPARED, CAN BE ARE WELDED THAT CONSISTS OF THE COMPACT PREPARED BY BLENDING WITHIN A HYDROGEN-REDUCED MOLYBDENUM POWDER ABOUT 0.2 TO 0.5 PERCENT BY WEIGHT OF TITANIUM POWDER, SAID TITANIUM POWDER BEING ADMIXED WITH WATER IN AN AMOUNT OF ABOUT 15 TO 25 PERCENT BY WEIGHT BASED ON THE TITANIUM, PRESSING THE POWDER MIXTURE TO FORM A COMPACT, AND VACUUM SINTERING THE RESULTANT COMPACT AT AN ELEVATED TEMPERATURE OF ABOVE ABOUT 1700*C. BUT BELOW THE MELTING POINT OF SAID MIXTURE.
References Cited (Backward Citations)
US2027532A
Cited
US2491866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |