US2707176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tricresyl phosphate-chlorinated biphenyl functional fluid improved by alkylated polystyrene
Assignee: Monsanto Chemicals Ltd
•
Filing: 1951-01-15
•
Granted: 1955-04-26
•
Expires: 1971-01-15
Abstract
No abstract record available.
Inventors
- 👤 Harry R Gamrath
- 👤 Roger E Hatton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:05
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/14; C10M2205/00; C10M2205/04; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FUNCTIONAL FLUID COMPRISING IN PARTS BY WEIGHT, 40 TO 55 PARTS OF TRICRESYL PHOSPHATE, 45 TO 60 PARTS OF CHLORINATED BIPHENYL CONTAINING A TOTAL OF 40 TO 60% BY WEIGHT OF COMBINED CHLORINE AND 0.4 TO 2 PARTS OF ALKYLATED POLYSTYRENE MADE BY ALKYLATING POLYSTYRENE HAVING A MOLECULAR WEIGHT OF BETWEEN 10.000 AND 150,000 WITH ABOUT 0.2 TO 0.8 PARTS BY WEIGHT OF OLEFINS CONTAINING 6 TO 15 CARBON ATOMS, SAID FUNCTIONAL FLUID HAVING A VISCOSITY AT 100* F. WITHIN THE RANGE OF 150 TO 1200 S. S. U AND A VISCOSITY INDEX WITHIN THE RANGE OF 0 TO +150.
Claim 2
Dependent Claim
101 words
A FUNCTIONAL FLUID COMPRISING IN PARTS BY WEIGHT, 40 TO 55 PARTS OF TRICRESYL PHOSPHATE, 45 TO 60 PARTS OF CHLORINATED BIPHENYL CONTAINING A TOTAL OF 40 TO 60% BY WEIGHT OF COMBINED CHLORINE AND 0.4 TO 2 PARTS OF ALKYLATED POLYSTYRENE MADE BY ALKYLATING POLYSTYRENE HAVING A MOLECULAR WEIGHT OF BETWEEN 10.000 AND 150,000 WITH ABOUT 0.2 TO 0.8 PARTS BY WEIGHT OF OLEFINS CONTAINING 6 TO 15 CARBON ATOMS, SAID FUNCTIONAL FLUID HAVING A VISCOSITY AT 100* F. WITHIN THE RANGE OF 150 TO 1200 S. S. U AND A VISCOSITY INDEX WITHIN THE RANGE OF 0 TO +150.
References Cited (Backward Citations)
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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) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |