US2591367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of isoparaffins with isomerized olefins
Assignee: Shell Development Co
•
Filing: 1945-07-21
•
Granted: 1952-04-01
•
Expires: 1965-07-21
Abstract
No abstract record available.
Inventors
- 👤 Sumner H Mcallister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:04
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS OF PRODUCING HIGHER BOILING HYDROCARBONS WHICH COMPRISES TREATING HYDROCARBON CONTAINING AN ALPHA-OLEFIN OF AT LEAST FOUR CARBON ATOMS PER MOLECULE UNDER CONDITIONS AT WHICH SAID OLEFIN IS ISOMERIZED TO AN OLEFIN OF THE SAME NUMBER OF CARBON ATOMS PER MOLECULE BUT HAVING A MORE CENTRALLY LOCATED DOUBLE BOND, AND ALKYLATING AN ISOPARAFFIN WITH THE RESULTING ISOMERIZED OLEFIN IN THE PRESENCE OF AN ALKYLATION CATALYST.
Claim 2
Dependent Claim
66 words
A PROCESS OF PRODUCING HIGHER BOILING HYDROCARBONS WHICH COMPRISES TREATING HYDROCARBON CONTAINING AN ALPHA-OLEFIN OF AT LEAST FOUR CARBON ATOMS PER MOLECULE UNDER CONDITIONS AT WHICH SAID OLEFIN IS ISOMERIZED TO AN OLEFIN OF THE SAME NUMBER OF CARBON ATOMS PER MOLECULE BUT HAVING A MORE CENTRALLY LOCATED DOUBLE BOND, AND ALKYLATING AN ISOPARAFFIN WITH THE RESULTING ISOMERIZED OLEFIN IN THE PRESENCE OF AN ALKYLATION CATALYST.
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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |