US3330646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing molybdenum from molybdenite
Assignee: Individual
•
Filing: 1964-02-03
•
Granted: 1967-07-11
•
Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Harold J Heinen
- 👤 Curtis L Barber
- 👤 Jr Don H Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:19
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/30; C22B34/34; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/949; C01P; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
A PROCESS FOR ELECTROLYTIC PREPARATION OF MOLYBDENUM CARBIDE COMPRISING FUSING IN A CONTAINER A MIXTURE OF (1) A MOLYBDENUM-CONTAINING MATERIAL, (2) A LOW MELTING BATH FROM THE GROUP CONSISTING OF ALKALI METAL HALIDE, ALKALINE EARTH METAL HALIDE AND MIXTURES THEREOF, AND (3) AN INORGANIC ALKALI METAL COMPOUND CAPABLE OF SOLUBILIZING THE MOLYBDENUM COMPOUND IN THE BATH AND ELECTROLYZING THE FUSED MIXTURE USING A CATHODE AND A CARBON ANODE, TO DEPOSIT MOLYBDENUM CARBIDE AT THE CATHODE.
Claim 2
Dependent Claim
75 words
A PROCESS FOR ELECTROLYTIC PREPARATION OF MOLYBDENUM CARBIDE COMPRISING FUSING IN A CONTAINER A MIXTURE OF (1) A MOLYBDENUM-CONTAINING MATERIAL, (2) A LOW MELTING BATH FROM THE GROUP CONSISTING OF ALKALI METAL HALIDE, ALKALINE EARTH METAL HALIDE AND MIXTURES THEREOF, AND (3) AN INORGANIC ALKALI METAL COMPOUND CAPABLE OF SOLUBILIZING THE MOLYBDENUM COMPOUND IN THE BATH AND ELECTROLYZING THE FUSED MIXTURE USING A CATHODE AND A CARBON ANODE, TO DEPOSIT MOLYBDENUM CARBIDE AT THE CATHODE.
Claim 3
Dependent Claim
35 words
A PROCESS FOR PRODUCING MOLYBDENUM METAL COMPRISING REACTING MOLYBDENUM CARBIDE WITH MOLYBDENUM OXIDE AT A HIGH TEMPERATURE IN AN INERT ATMOSPHERE, SAID HIGH TEMPERATURE BEING AT LEAST SUFFICIENT TO CAUSE SINTERING OF SAID MOLYBDENUM METAL.
Claim 4
Dependent Claim
35 words
A PROCESS FOR PRODUCING MOLYBDENUM METAL COMPRISING REACTING MOLYBDENUM CARBIDE WITH MOLYBDENUM OXIDE AT A HIGH TEMPERATURE IN AN INERT ATMOSPHERE, SAID HIGH TEMPERATURE BEING AT LEAST SUFFICIENT TO CAUSE SINTERING OF SAID MOLYBDENUM METAL.
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |