Patent US3175017A successfully refreshed from Google Patents.
US3175017A
Expired / Lapsed
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Conversion of normal olefins to isoparaffins
Assignee: Phillips Petroleum Co
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Filing: 1961-09-25
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Granted: 1965-03-23
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:51
CPC Classifications
C; C07; C07C; C07C9/00; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/18; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/70; C07C2523/76; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR THE CONVERSION OF C5 AND HIGHER NORMAL OLEFINS TO BRANCED CHAIN PARAFFINS WHICH COMPRISES ALKYLATING AN AROMATIC COMPOUND WITH A NORMAL OLEFIN SO AS TO PRODUCE A SECONDARY ALKYL AROMATIC, AND SUBSEQUENTLY CATALYTICALLY HYDRODEALKYLATING THE RESULTING SECONDARY ALKYL AROMATIC COMPOUND AND THEREBY PRODUCING A
Claim 2
Dependent Claim
47 words
A PROCESS FOR THE CONVERSION OF C5 AND HIGHER NORMAL OLEFINS TO BRANCED CHAIN PARAFFINS WHICH COMPRISES ALKYLATING AN AROMATIC COMPOUND WITH A NORMAL OLEFIN SO AS TO PRODUCE A SECONDARY ALKYL AROMATIC, AND SUBSEQUENTLY CATALYTICALLY HYDRODEALKYLATING THE RESULTING SECONDARY ALKYL AROMATIC COMPOUND AND THEREBY PRODUCING A
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |