US3510291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor phase conversion of molybdenum or tungsten compound to form the oxide or metal
Assignee: Philips North America LLC
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Filing: 1966-11-10
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Granted: 1970-05-05
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Expires: 1986-11-10
Abstract
No abstract record available.
Inventors
- 👤 Walton E Brush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:59
CPC Classifications
C; C01; C01G; C01G39/00; C01G39/02; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/24; B22F9/26; C01G41/00; C01P; C01P2002/00; C01P2002/50; C01P2002/52
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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |