Patent US3083246A successfully refreshed from Google Patents.
US3083246A
Expired / Lapsed
US
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Polymerization of olefinic hydrocarbons
Assignee: Shell USA Inc
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Filing: 1961-02-09
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Granted: 1963-03-26
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Expires: 1981-02-09
Abstract
No abstract record available.
Inventors
- 👤 Holzman George
- 👤 Alfred W Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:29
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2521/00; C07C2521/06; C07C2521/08; C07C2531/00; C07C2531/16; C07C2531/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
PROCESS FOR THE POLYMERIZATION OF A HYDROCARBON HAVING FRON 1 TO 2 OLEFINIC BONDS WHICH COMPRISES CONTACTING SAID HYDROCARBON WITH A CATALYTICALLY ACTIVE AMOUNT OF A GROUP VIB METAL HEXACARBONYL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM HEXACARBONYL AND TUNGSTEN-HEXACARBONYL AT A TEMPERATURE WITHIN THE RANGE OF FROM 75 TO 350* C. TO POLYMERIZE SAID HYDROCARBON.
Claim 2
Dependent Claim
56 words
PROCESS FOR THE POLYMERIZATION OF A HYDROCARBON HAVING FRON 1 TO 2 OLEFINIC BONDS WHICH COMPRISES CONTACTING SAID HYDROCARBON WITH A CATALYTICALLY ACTIVE AMOUNT OF A GROUP VIB METAL HEXACARBONYL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM HEXACARBONYL AND TUNGSTEN-HEXACARBONYL AT A TEMPERATURE WITHIN THE RANGE OF FROM 75 TO 350* C. TO POLYMERIZE SAID HYDROCARBON.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |