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US3440732A
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Recovery of complex tungsten and molybdenum compounds from solutions
Assignee: GTE Sylvania Inc
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Filing: 1967-09-19
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Granted: 1969-04-29
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Expires: 1987-09-19
Abstract
No abstract record available.
Inventors
- 👤 Vincent Chiola
- 👤 Robert E Dodds
- 👤 Clarence D Vanderpool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:30
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/06; C01B25/00; C01B35/08; C01B35/10; C01G; C01G39/00; C01G39/006; C01G41/00; C01G41/006; C01P; C01P2006/00; C01P2006/80; C01P2006/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3192013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |