US3330818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of fouling in ziegler polymerizations
Assignee: Monsanto Co
•
Filing: 1963-02-18
•
Granted: 1967-07-11
•
Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Wallene R Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:24
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; C; C08; C08F; C08F10/00; C08F110/00; C08F110/02; B01J2219/00; B01J2219/00049; B01J2219/00245; B01J2219/00252; Y; Y10; Y10S; Y10S526/00; Y10S526/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METHOD FOR REDUCING PLATING OF LOW-PRESSURE POLYMERIZATION REACTOR INTERNALS WHICH COMPRISES AGITATING THE REACTANT MIXTURE TO FORM A ZONE OF HIGH TURBULENCE BY MEANS OF OPPOSED IMPELLERS.
Claim 2
Independent Claim
28 words
A METHOD FOR REDUCING PLATING OF LOW-PRESSURE POLYMERIZATION REACTOR INTERNALS WHICH COMPRISES AGITATING THE REACTANT MIXTURE TO FORM A ZONE OF HIGH TURBULENCE BY MEANS OF OPPOSED IMPELLERS.
References Cited (Backward Citations)
US1569049A
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US3107238A
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US2984657A
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US2893984A
Cited
US3056769A
Cited
US3108094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |