US2931791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of hydrocarbons with catalyst of bf3 and bci3
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1955-05-23
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Granted: 1960-04-05
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 John L Ernst
- 👤 Small Augustus Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:21
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C08; C08F; C08F10/00; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F210/12; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE PROCESS WHICH COMPRISES EFFECTING THE POLYMERIZATION OF UNSATURATED POLYMERIZABLE HYDROCARBON COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS AND MULTIOLEFINS BY MEANS OF A FRIEDEL-CRAFTS ACTIVE METAL HALIDE CATALYST AND BORON TRICHLORIDE AS A COCATALYST, AT A TEMPERATURE OF ABOUT-20*C. TO-150*C.
Claim 2
Dependent Claim
42 words
THE PROCESS WHICH COMPRISES EFFECTING THE POLYMERIZATION OF UNSATURATED POLYMERIZABLE HYDROCARBON COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINS AND MULTIOLEFINS BY MEANS OF A FRIEDEL-CRAFTS ACTIVE METAL HALIDE CATALYST AND BORON TRICHLORIDE AS A COCATALYST, AT A TEMPERATURE OF ABOUT-20*C. TO-150*C.
References Cited (Backward Citations)
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US2481273A
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US2486368A
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US2485454A
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US2471130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |