US3116146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for sintering tungsten powder
Assignee: General Electric Co
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Filing: 1961-07-27
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Granted: 1963-12-31
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Expires: 1981-07-27
Abstract
No abstract record available.
Inventors
- 👤 Gatti Arno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS FOR IMPROVING THE DENSITY OF SINTERED TUNGSTEN COMPACTS COMPRISING, PREPARING A MIXTURE CONSISTING ESSENTIALLY OF TUNGSTEN POWDER AND FROM ABOUT 0.05 TO 0.50 WEIGHT PERCENT NICKEL POWDER, PRESSING THE POWDER MIXTURE INTO A GREEN BODY, AND FIRING THE GREEN COMPACT AT A TEMPERATURE OF FROM ABOUT 1050*C. TO ABOUT 1500* C. FOR A TIME SUFFICIENT TO SINTER THE GREEN COMPACT INTO A BODY OF FINAL DENSITY.
Claim 2
Dependent Claim
68 words
A PROCESS FOR IMPROVING THE DENSITY OF SINTERED TUNGSTEN COMPACTS COMPRISING, PREPARING A MIXTURE CONSISTING ESSENTIALLY OF TUNGSTEN POWDER AND FROM ABOUT 0.05 TO 0.50 WEIGHT PERCENT NICKEL POWDER, PRESSING THE POWDER MIXTURE INTO A GREEN BODY, AND FIRING THE GREEN COMPACT AT A TEMPERATURE OF FROM ABOUT 1050*C. TO ABOUT 1500* C. FOR A TIME SUFFICIENT TO SINTER THE GREEN COMPACT INTO A BODY OF FINAL DENSITY.
References Cited (Backward Citations)
DE233885C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |