US3764649A
Expired / Lapsed
US
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Preparation of ammonium polythiomolybdate
Assignee: US TUNGSTEN Corp A CORP OF
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Filing: 1970-12-07
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Granted: 1973-10-09
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Expires: 1990-12-07
Abstract
Abstract A novel composition of matter, ammonium polythiomolybdate, having the empirical formula 3MoS4.2NH4OH.
Inventors
- 👤 C Kurtak
- 👤 L Hartzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:34
CPC Classifications
C; C01; C01G; C01G39/00; C01G39/06; C01G39/006; C01P; C01P2002/00; C01P2002/80; C01P2002/82; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 0
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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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |