US3291756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic dehydrogenation
Assignee: Baugh Chemical Co
•
Filing: 1964-01-09
•
Granted: 1966-12-13
•
Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Robert S Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:55
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/86; B01J23/864; B01J23/862; C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A DEHYDROGENATION CATALYST CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 2 TO 90 PERCENT OF COBALTOUS FERRITE, FROM ABOUT 5 TO 20 PERCENT OF POTASSIUM CALCULATED AS K2O, 0 TO 85 PERCENT OF FREE FERRIC OXIDE, AND FROM 0 TO 5 PERCENT OF CHROMIC OXIDE.
Claim 2
Dependent Claim
44 words
A DEHYDROGENATION CATALYST CONSISTING ESSENTIALLY OF, BY WEIGHT, ABOUT 2 TO 90 PERCENT OF COBALTOUS FERRITE, FROM ABOUT 5 TO 20 PERCENT OF POTASSIUM CALCULATED AS K2O, 0 TO 85 PERCENT OF FREE FERRIC OXIDE, AND FROM 0 TO 5 PERCENT OF CHROMIC OXIDE.
References Cited (Backward Citations)
US3179707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |