US3070835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump quenching of polymer solvent mixtures
Assignee: Standard Oil Co
•
Filing: 1960-01-12
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Granted: 1963-01-01
•
Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Clarence M Alsys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/14; B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; B29B9/065; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
APPARATUS FOR PUMP QUENCHING A SOLUTION OF A NORMALLY SOLID OLEFIN POLYMER AND A NORMALLY LIQUID HYDROCARBON SOLVENT WHEREIN THE WEIGHT PERCENT CONCENTRATION OF SAID POLYMER IN THE SOLUTION IS IN EXCESS OF TEN PLUS TWICE THE MELT INDEX OF SAID POLYMER, WHICH APPARATUS COMPRISES A CHAMBER CONTAINING A MOVING BODY OF RELATIVELY COOL WATER, AN ORIFICE FOR EXTRUDING SAID SOLU-
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |