US3301673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid phase sintering process
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1964-04-24
•
Granted: 1967-01-31
•
Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Harold C Bridwell
- 👤 Arthur G Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:36
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; C22C29/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A LIQUID PHASE SINTERING OPERATION WHEREIN PARTICLES OF A REFRACTORY HARD METAL ARE BONDED TOGETHER WITH A MOLTEN BINDER ALLOY TO PRODUCE A COMPOSITE MATERIAL, THE IMPROVEMENT WHICH COMPRISES BONDING SAID PARTICLES TOGETHER WITH AN ALLOY CONSISTING ESSENTIALLY OF ABOUT 20 TO 40 PERCENT OF AT LEAST ONE METAL FROM GROUP VII, SERIES 4 OF THE PERIODIC TABLE, ABOUT 10 TO 25 PERCENT MAGANESE, ABOUT 0 TO 5 PERCENT SILICON, ABOUT 0 TO 10 PERCENT TIN, ABOUT 0 TO 0.2 PERCENT SULFUR, AND THE BALANCE COPPER.
Claim 2
Dependent Claim
87 words
IN A LIQUID PHASE SINTERING OPERATION WHEREIN PARTICLES OF A REFRACTORY HARD METAL ARE BONDED TOGETHER WITH A MOLTEN BINDER ALLOY TO PRODUCE A COMPOSITE MATERIAL, THE IMPROVEMENT WHICH COMPRISES BONDING SAID PARTICLES TOGETHER WITH AN ALLOY CONSISTING ESSENTIALLY OF ABOUT 20 TO 40 PERCENT OF AT LEAST ONE METAL FROM GROUP VII, SERIES 4 OF THE PERIODIC TABLE, ABOUT 10 TO 25 PERCENT MAGANESE, ABOUT 0 TO 5 PERCENT SILICON, ABOUT 0 TO 10 PERCENT TIN, ABOUT 0 TO 0.2 PERCENT SULFUR, AND THE BALANCE COPPER.
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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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |