US3146093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of molybdenum metal
Assignee: Millennium Petrochemicals Inc
•
Filing: 1962-03-21
•
Granted: 1964-08-25
•
Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Foos
- 👤 Martin A Hobin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:19
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/30; C22B34/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD FOR THE PREPARATION OF MOLYBDENUM METAL WHICH CONSISTS OF REACTING AT A TEMPERATURE OF ABOUT 100* TO 900*C. A MOLYBDENUM SULFIDE-SODIUM SULFIDE COMPLEX WITH AN AMOUNT OF ALKALI METAL SUFFICIENT TO REDUCE SAID MOLYBDENUM SULFIDE-SODIUM SULFIDE COMPLEX TO MOLYBDENUM METAL AND RECOVERING SAID MOLYBDENUM METAL.
Claim 2
Independent Claim
47 words
A METHOD FOR THE PREPARATION OF MOLYBDENUM METAL WHICH CONSISTS OF REACTING AT A TEMPERATURE OF ABOUT 100* TO 900*C. A MOLYBDENUM SULFIDE-SODIUM SULFIDE COMPLEX WITH AN AMOUNT OF ALKALI METAL SUFFICIENT TO REDUCE SAID MOLYBDENUM SULFIDE-SODIUM SULFIDE COMPLEX TO MOLYBDENUM METAL AND RECOVERING SAID MOLYBDENUM METAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |