US2769847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts for the hydration of olefines and dehydration of alcohols
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1952-09-22
•
Granted: 1956-11-06
•
Expires: 1972-09-22
Abstract
No abstract record available.
Inventors
- 👤 Robinson Ralph Lozelu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:33
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/745
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A CATALYST SUITABLE FOR THE HYDRATION OF OLEFINES, THE CATALYST CONSISTING ESSENTIALLY OF AN INTIMATE ADMIXTURE OF TITANIA AND FERRIC OXIDE, THE PROPORTION OF FERRIC OXIDE BEING BETWEEN 1 AND 90 MOLES PER 10 MOLES OF ADMIXTURE.
Claim 2
Dependent Claim
37 words
A CATALYST SUITABLE FOR THE HYDRATION OF OLEFINES, THE CATALYST CONSISTING ESSENTIALLY OF AN INTIMATE ADMIXTURE OF TITANIA AND FERRIC OXIDE, THE PROPORTION OF FERRIC OXIDE BEING BETWEEN 1 AND 90 MOLES PER 10 MOLES OF ADMIXTURE.
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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |