US3485584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapour phase oxidation process
Assignee: Bayer AG
•
Filing: 1966-04-06
•
Granted: 1969-12-23
•
Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Hans Zirngibl
- 👤 Karl Brandle
- 👤 Peter Beumer
- 👤 Walter Weidmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:49
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/183; C01B13/00; C01B13/14; C01B13/20; C01B13/22; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01P; C01P2002/00; C01P2002/50; C01P2002/52; C01P2002/54; C01P2006/00; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2670275A
Cited
US3105742A
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US3147077A
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US3203763A
Cited
US3284159A
Cited
US3306760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |