US2841558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon oil compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1955-06-06
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Granted: 1958-07-01
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Expires: 1975-06-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Fields
- 👤 John M Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:58
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/195; C10L1/197; C10L1/1973; C10M; C10M1/00; C10M1/08; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10N; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A HYDROCARBON OIL COMPOSITION OF REDUCED FORMING PROPERTIES CONSISTING ESSENTIALLY OF A HYDROCARBON OIL HAVING FORMING TENDENCIES AND A QUANTITY LESS THAN 0.1 PER CENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OIL, SAID QUANTITY BEING SUFFICIENT TO SUPPRESS SAID FOAMING TENDENCIES BUT INSUFFICIENT TO SUBSTANTIALLY MODIFY THE VISCOSITY PROPERTIES OF SAID OIL, OF A VINYL ESTER POLYMER CONSISTING OF A VINYL ESTER OF A FATTY ACID AND HAVING AN AVERAGE OF FROM 4 TO 8 CARBON ATOMS IN THE ACID PORTION OF THE POLYMER, A 10 PERCENT CYCLOHEXANONE SOLUTION OF SAID LIQUID POLYMER HAVING A SPECIFIC VISCOSITY OF FROM 0.25 TO 1.5 AT A TEMPERATURE OF 25*C.
Claim 2
Dependent Claim
109 words
A HYDROCARBON OIL COMPOSITION OF REDUCED FORMING PROPERTIES CONSISTING ESSENTIALLY OF A HYDROCARBON OIL HAVING FORMING TENDENCIES AND A QUANTITY LESS THAN 0.1 PER CENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OIL, SAID QUANTITY BEING SUFFICIENT TO SUPPRESS SAID FOAMING TENDENCIES BUT INSUFFICIENT TO SUBSTANTIALLY MODIFY THE VISCOSITY PROPERTIES OF SAID OIL, OF A VINYL ESTER POLYMER CONSISTING OF A VINYL ESTER OF A FATTY ACID AND HAVING AN AVERAGE OF FROM 4 TO 8 CARBON ATOMS IN THE ACID PORTION OF THE POLYMER, A 10 PERCENT CYCLOHEXANONE SOLUTION OF SAID LIQUID POLYMER HAVING A SPECIFIC VISCOSITY OF FROM 0.25 TO 1.5 AT A TEMPERATURE OF 25*C.
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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |