Patent US3264101A successfully refreshed from Google Patents.
US3264101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing sintered materials
Assignee: Hitachi Ltd
•
Filing: 1963-08-13
•
Granted: 1966-08-02
•
Expires: 1983-08-13
Abstract
No abstract record available.
Inventors
- 👤 Takeya Yoshiaki
- 👤 Hirano Mikio
- 👤 Hara Nobuhiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:13
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/05; C22C1/051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR MANUFACTURING MOLYBDENUM, TUNGSTEN AND TUNGSTEN CARBIDE SINTERED MATERIALS WHICH COMPRISES MIXING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM AND MIXTURES THEREOF WITH A SINTERABLE MATERIAL CONSISTING ESSENTIALLY OF ONE OF THE SUBSTANCES MOLYBDENUM, TUNGSTEN AND TUNGSTEN CARBIDE, PRESSING THE RESULTANT MIXTURE INTO A COMPACT, HEATING SAID COMPACT TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID ELEMENT BUT BELOW THE BOILING POINT THEREOF, AND THEN FURTHER HEATING THE COMPACT TO A TEMPERATURE ABOVE THE BOILING POINT OF SAID ELEMENT UNTIL THE CONTENT OF SAID ELEMENT IS ESSENTIALLY REDUCED TO ZERO.
Claim 2
Dependent Claim
96 words
A PROCESS FOR MANUFACTURING MOLYBDENUM, TUNGSTEN AND TUNGSTEN CARBIDE SINTERED MATERIALS WHICH COMPRISES MIXING AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZINC, CADMIUM AND MIXTURES THEREOF WITH A SINTERABLE MATERIAL CONSISTING ESSENTIALLY OF ONE OF THE SUBSTANCES MOLYBDENUM, TUNGSTEN AND TUNGSTEN CARBIDE, PRESSING THE RESULTANT MIXTURE INTO A COMPACT, HEATING SAID COMPACT TO A TEMPERATURE ABOVE THE MELTING POINT OF SAID ELEMENT BUT BELOW THE BOILING POINT THEREOF, AND THEN FURTHER HEATING THE COMPACT TO A TEMPERATURE ABOVE THE BOILING POINT OF SAID ELEMENT UNTIL THE CONTENT OF SAID ELEMENT IS ESSENTIALLY REDUCED TO ZERO.
References Cited (Backward Citations)
US1034949A
Cited
US1636763A
Cited
US1531666A
Cited
US2030229A
Cited
US2179960A
Cited
US2360522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |