US3127352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ppm branched polyvinyl ether
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:31
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/195; C10L1/1955; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C10M; C10M171/00; C10M171/004; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10N; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A COMPOSITION OF REDUCED FOAMING PROPERTIES CONSISTING ESSENTIALLY OF A HYDROCARBON LIQUID HAVING FOAMING TENDENCIES WHICH CONTAINS A MINOR AMOUNT, SUFFCIENT TO REDUCE THE FOAMING OF SAID HYDROCARBON LIQUID, OF A POLYMER OF A POLYVINYL ETHER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 150,000 WHEREIN THE RADICAL ON THE ETHER GROUP CONTAINS A MEMBER SELECTED FROM THE CLASS CONSISTING OF A BRANCHED ALIPHATIC GROUP, AN ARYL GROUP AND A CYCLOALIPHATIC GROUP.
Claim 2
Dependent Claim
72 words
A COMPOSITION OF REDUCED FOAMING PROPERTIES CONSISTING ESSENTIALLY OF A HYDROCARBON LIQUID HAVING FOAMING TENDENCIES WHICH CONTAINS A MINOR AMOUNT, SUFFCIENT TO REDUCE THE FOAMING OF SAID HYDROCARBON LIQUID, OF A POLYMER OF A POLYVINYL ETHER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 150,000 WHEREIN THE RADICAL ON THE ETHER GROUP CONTAINS A MEMBER SELECTED FROM THE CLASS CONSISTING OF A BRANCHED ALIPHATIC GROUP, AN ARYL GROUP AND A CYCLOALIPHATIC GROUP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |