Patent US4974950A successfully refreshed from Google Patents.
Patent US3150204A successfully refreshed from Google Patents.
US3150204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of isoparaffins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-09-29
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Granted: 1964-09-22
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Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Jr James R Lawley
- 👤 Oral C Behymer
- 👤 Edward F Wadley
- 👤 Henry G Schutze
- 👤 Richard S Manne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:35
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C2/76; C07C5/00; C07C5/02; C07C5/03; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A METHOD FOR PRODUCING PARAFFINS WHICH COMPRISES CONTACTING A MIXTURE OF AN ISOPARAFFIN HAVING 4 TO 6 CARBON ATOMS IN THE MOLECULE AND AN OLEFINIC HYDROCARBON HAVING 3 TO 4 ALKYL GROUPS ON THE CARBON ATOMS BETWEEN WHICH LIES THE DOUBLE BOND AND HAVING 5 TO 20 CARBON ATOMS IN THE MOLECULE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 20* TO ABOUT 100*F. IN THE LIQUID PHASE WITH SULFURIC ACID HAVING A STRENGTH WITHIN THE RANGE FROM ABOUT 85% TO ABOUT 100% H2SO4, THE ISOPARAFFIN AND OLEFINIC HYDROCARBON BEING PRESENT IN SAID MIXTURE IN A VOLUME RATIO WITHIN THE RANGE FROM ABOUT 3 TO ABOUT 25 OF ISOPARAFFIN TO 1 OF OLEFINIC HYDROCARBON, TO PRODUCE A PRODUCT CONTAINING ESSENTIALLY ISOPARAFFINS FORMED BY CONDENSING SAID ISOPARAFFIN IN THE MIXTURE WITH ITSELF AND BY SATURATING SAID OLEFINIC HYDROCARBON.
Claim 2
Independent Claim
137 words
A METHOD FOR PRODUCING PARAFFINS WHICH COMPRISES CONTACTING A MIXTURE OF AN ISOPARAFFIN HAVING 4 TO 6 CARBON ATOMS IN THE MOLECULE AND AN OLEFINIC HYDROCARBON HAVING 3 TO 4 ALKYL GROUPS ON THE CARBON ATOMS BETWEEN WHICH LIES THE DOUBLE BOND AND HAVING 5 TO 20 CARBON ATOMS IN THE MOLECULE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 20* TO ABOUT 100*F. IN THE LIQUID PHASE WITH SULFURIC ACID HAVING A STRENGTH WITHIN THE RANGE FROM ABOUT 85% TO ABOUT 100% H2SO4, THE ISOPARAFFIN AND OLEFINIC HYDROCARBON BEING PRESENT IN SAID MIXTURE IN A VOLUME RATIO WITHIN THE RANGE FROM ABOUT 3 TO ABOUT 25 OF ISOPARAFFIN TO 1 OF OLEFINIC HYDROCARBON, TO PRODUCE A PRODUCT CONTAINING ESSENTIALLY ISOPARAFFINS FORMED BY CONDENSING SAID ISOPARAFFIN IN THE MIXTURE WITH ITSELF AND BY SATURATING SAID OLEFINIC HYDROCARBON.
References Cited (Backward Citations)
US2505644A
Cited
US2359119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |