US2880255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylation of hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1954-11-24
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Granted: 1959-03-31
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Expires: 1974-11-24
Abstract
No abstract record available.
Inventors
- 👤 Horace R Davis
- 👤 David B Brandon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:03
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A HETEROGENEOUS LIQUID PHASE ALKYLATION PROCESS WHICH COMPRISES CONTACTING AN ALKYLATABLE HYDRACARBON WITH AN OLEFIN IN THE PRESENCE OF AN ADDED MERCAPTAN HAVING AN ALKYL GROUP CONTAINING AT LEAST 8 CARBON ATOMS AND A LIQUID ALKYLATION CATALYST UNDER ALKYATION CONDITIONS SUITABLE TO PRODUCE A CONVERSION PRODUCT.
Claim 2
Dependent Claim
46 words
A HETEROGENEOUS LIQUID PHASE ALKYLATION PROCESS WHICH COMPRISES CONTACTING AN ALKYLATABLE HYDRACARBON WITH AN OLEFIN IN THE PRESENCE OF AN ADDED MERCAPTAN HAVING AN ALKYL GROUP CONTAINING AT LEAST 8 CARBON ATOMS AND A LIQUID ALKYLATION CATALYST UNDER ALKYATION CONDITIONS SUITABLE TO PRODUCE A CONVERSION PRODUCT.
References Cited (Backward Citations)
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US2375637A
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US2393152A
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |