Patent US4607940A successfully refreshed from Google Patents.
Patent US2979549A successfully refreshed from Google Patents.
US2979549A
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Process and catalyst for polymerization
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-12-29
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Granted: 1961-04-11
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Telfer L Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:22
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/18; C07C2527/00; C07C2527/02; C07C2527/053; C07C2527/054; C07C2527/055; C07C2527/14; C07C2527/16; C07C2527/167; C07C2527/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN IMPROVED PROCESS FOR PRODUCTING C13 TO C16 OLEFIN POLYMER WHICH COMPRISES INTIMATELY CONTACTING C6 TO C9 OLEFINS IN A REACTION ZONE WITH 5 TO 20 LIQUID VOLUME PERCENT OF AN ACID CATALYST CONSISTING ESSENTIALLY OF EQUAL VOLUMES OF 85 TO 100 WEIGHT PERCENT SULFURIC ACID AND ABOUT 100 TO 110 WEIGHT PERCENT PHOSPHORIC ACID AT A TEMPERATURE IN THE RANGE OF 100* TO 160*F. FOR A PERIOD OF TIME IN THE RANGE OF 1/8 TO 5 HOURS.
Claim 2
Dependent Claim
78 words
AN IMPROVED PROCESS FOR PRODUCTING C13 TO C16 OLEFIN POLYMER WHICH COMPRISES INTIMATELY CONTACTING C6 TO C9 OLEFINS IN A REACTION ZONE WITH 5 TO 20 LIQUID VOLUME PERCENT OF AN ACID CATALYST CONSISTING ESSENTIALLY OF EQUAL VOLUMES OF 85 TO 100 WEIGHT PERCENT SULFURIC ACID AND ABOUT 100 TO 110 WEIGHT PERCENT PHOSPHORIC ACID AT A TEMPERATURE IN THE RANGE OF 100* TO 160*F. FOR A PERIOD OF TIME IN THE RANGE OF 1/8 TO 5 HOURS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |