Patent US428476A successfully refreshed from Google Patents.
Patent US3109869A successfully refreshed from Google Patents.
US3109869A
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Process for dimerizing olefins
Assignee: Sinclair Research Inc
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Filing: 1958-04-09
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Granted: 1963-11-05
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Expires: 1978-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert R Chambers
- 👤 Robert A Sanford
- 👤 Seymour H Patinkin
- 👤 Robert L Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:19
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/16; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A METHOD FOR PRODUCING A CLOSE-BOILING OLEFIN DIMER FRACTION IN THE C12 TO C32 RANGE, THE STEPS COMPRISING CONTACTING N THE LIQUID PHASE A CLOSE CUT MONO-OLEFIN FRACTION IN THE C6 TO C16 RANGE, SAID CUT HAVING ABOILING POINT RANGE UP TO ABOUT 30*C., AND DERIVED FROM THE POLYMERIZATION OF C3 TO C4 OLEFINS, WITH NOT MORE THAN A TOTAL OF ABOUT 5 VOLUME PERCENT OF SULFUIRIC ACID BASED ON THE OLEFIN FEED, SAID SULFURIC ACID BEING OF AT LEAST ABOUT 75 PERCENT STRENGTH.
Claim 2
Dependent Claim
85 words
IN A METHOD FOR PRODUCING A CLOSE-BOILING OLEFIN DIMER FRACTION IN THE C12 TO C32 RANGE, THE STEPS COMPRISING CONTACTING N THE LIQUID PHASE A CLOSE CUT MONO-OLEFIN FRACTION IN THE C6 TO C16 RANGE, SAID CUT HAVING ABOILING POINT RANGE UP TO ABOUT 30*C., AND DERIVED FROM THE POLYMERIZATION OF C3 TO C4 OLEFINS, WITH NOT MORE THAN A TOTAL OF ABOUT 5 VOLUME PERCENT OF SULFUIRIC ACID BASED ON THE OLEFIN FEED, SAID SULFURIC ACID BEING OF AT LEAST ABOUT 75 PERCENT STRENGTH.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |