Patent US2806072A successfully refreshed from Google Patents.
US2806072A
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Dimerization process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-12-31
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Granted: 1957-09-10
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Charles A Cohen
- 👤 Clifford W Muessig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:39
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1213; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS FOR SELECTIVELY PRODUCING PRINCIPALLY A PROPLENE PLYMER IN THE RANGE OF C12 TO C24 WHICH COMPRISES DIMERIZING A C. TO C12 PROPYLENE PLYMER SUBSTANTIALLY FREE OF OLEFINS CONTAINING LESS THA SIX CARBON ATOMS AT TEMPERATURES BETWEEN 0* C. TO 100* C. WITH A PREFORMED BORON FLUORIDE-ETHER CATALYST COMPLEX AND AN EXCESS OF BORON FLORIDE.
Claim 2
Dependent Claim
56 words
THE PROCESS FOR SELECTIVELY PRODUCING PRINCIPALLY A PROPLENE PLYMER IN THE RANGE OF C12 TO C24 WHICH COMPRISES DIMERIZING A C. TO C12 PROPYLENE PLYMER SUBSTANTIALLY FREE OF OLEFINS CONTAINING LESS THA SIX CARBON ATOMS AT TEMPERATURES BETWEEN 0* C. TO 100* C. WITH A PREFORMED BORON FLUORIDE-ETHER CATALYST COMPLEX AND AN EXCESS OF BORON FLORIDE.
References Cited (Backward Citations)
US2588425A
Cited
US2588358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |