US3074924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous polymerization process
Assignee: ConocoPhillips Co
•
Filing: 1956-04-25
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Granted: 1963-01-22
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Austin J Kizer
- 👤 Oskar E H Klopfer
- 👤 Jr Oliver W Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00159; B01J2219/00162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SINGLE PASS CONTINUOUS POLYMERIZATION METHOD WHICH COMPRISES: ESTABLISHING A LONGITUDINALLY FLOWING ELONGATED CYLINDRICAL STREAM OF NON-AQUEOUS LIQUID DILUENT; INTRODUCING INTO SAID STREAM A POLYMERIZATION CATALYST; DISPERSING IN SAID STREAM MONOMER MATERIAL POLYMERIZABLE BY SAID CATALYST; CONDUCTING THE POLYMERIZATION IN AN EXTENDED REGION OF SAID STREAM WHICH IS MAINTAINED FREE OF AGITATION AND IN SUBSTANTIALLY NON-TURBULENT LAMINAR FLOW SO THAT THE CYLINDRICAL STREAM NEAR THE END OF SAID EXTENDED REGION COMPRISES A LONGITUDINALLY FLOWING BODY
Claim 2
Dependent Claim
75 words
A SINGLE PASS CONTINUOUS POLYMERIZATION METHOD WHICH COMPRISES: ESTABLISHING A LONGITUDINALLY FLOWING ELONGATED CYLINDRICAL STREAM OF NON-AQUEOUS LIQUID DILUENT; INTRODUCING INTO SAID STREAM A POLYMERIZATION CATALYST; DISPERSING IN SAID STREAM MONOMER MATERIAL POLYMERIZABLE BY SAID CATALYST; CONDUCTING THE POLYMERIZATION IN AN EXTENDED REGION OF SAID STREAM WHICH IS MAINTAINED FREE OF AGITATION AND IN SUBSTANTIALLY NON-TURBULENT LAMINAR FLOW SO THAT THE CYLINDRICAL STREAM NEAR THE END OF SAID EXTENDED REGION COMPRISES A LONGITUDINALLY FLOWING BODY
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |