US2945072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation and dealkylation processes
Assignee: Honeywell International Inc
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Filing: 1956-04-11
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Granted: 1960-07-12
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Expires: 1976-04-11
Abstract
No abstract record available.
Inventors
- 👤 George G Joris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:17
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/085; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C2521/00; C07C2521/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR PRODUCING PROPYLATED BENZENES WHICH COMPRISES REACTING AN AROMATIC COMPOUND OF THE GROUP CONSISTING OF BENZENE AND HALO-SUBSTITUTED BENZENES WITH PROPYLENE IN LIQUID PHASE IN THE PRESENCE OF AN ACIDACTIVATED, NON-SWELLABLE, BENTONITE-TYPE CLAY HAVING A BASE EXCHANGE CAPACITY OF AT LEAST ABOUT 20 AND AT A TEMPERATURE OF ABOUT 70* TO 130*C.
Claim 2
Dependent Claim
54 words
A PROCESS FOR PRODUCING PROPYLATED BENZENES WHICH COMPRISES REACTING AN AROMATIC COMPOUND OF THE GROUP CONSISTING OF BENZENE AND HALO-SUBSTITUTED BENZENES WITH PROPYLENE IN LIQUID PHASE IN THE PRESENCE OF AN ACIDACTIVATED, NON-SWELLABLE, BENTONITE-TYPE CLAY HAVING A BASE EXCHANGE CAPACITY OF AT LEAST ABOUT 20 AND AT A TEMPERATURE OF ABOUT 70* TO 130*C.
References Cited (Backward Citations)
GB316951A
Cited
FR681049A
Cited
US2010949A
Cited
US2143493A
Cited
US2410111A
Cited
US2442342A
Cited
US2403748A
Cited
US2564488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |