US3360465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic ester lubricants
Assignee: Drew Chemical Corp
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Filing: 1964-05-22
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Granted: 1967-12-26
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Warman Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:51
CPC Classifications
C; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/38; C07; C07C; C07C69/00; C07C69/02; C07C69/22; C07C69/33; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/10; C10M2209/103; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A LUBRICANT COMPOSITION ADAPTED FOR USE AT -40*F. CONSISTING ESSENTIALLY OF AN ESTER OF PENTAERYTHRITOL AND A MIXTURE OF ALKANOIC ACIDS CONSISTING ESSENTIALLY OF ABOUT 25 MOL PERCENT CAPRYLIC ACID, ABOUT 15 MOL PERCENT METHYL PENTANOIC ACID, IN THE RANGE OF FROM ABOUT 15 TO ABOUT 20% PELARGONIC ACID, AND IN THE RANGE OF FROM ABOUT 40 TO ABOUT 45 MOL PERCENT VALERIC ACID, SAID MIXTURE OF ALKANOIC ACIDS HAVING THE RANGE OF FROM ABOUT 6.5 TO ABOUT 6.7 CARBON ATOMS PER ACID MOLECULE, SAID PELARGONIC AND CAPRYLIC ACIDS CONSISTING OF FROM ABOUT 51 1/2 TO ABOUT 57 MOL PERCENT OF SAID ALKANOIC ACIDS, SAID ALKANOIC ACIDS CONSISTING OF NOT MORE THAN 15 MOL PERCENT OF BRANCHED ACIDS, SAID COMPOSITION BEING CHARACTERIZED BY REMAINING LIQUID AND ALSO MAINTAINING ITS LUBRICITY AT -40*F, AND FURTHER CHARACTERIZED BY AN INITIAL KINEMATIC VISCOSITY OF NOT MORE THAN ABOUT 6800 CENTISTOKES AT -40*F.
Claim 2
Dependent Claim
149 words
A LUBRICANT COMPOSITION ADAPTED FOR USE AT -40*F. CONSISTING ESSENTIALLY OF AN ESTER OF PENTAERYTHRITOL AND A MIXTURE OF ALKANOIC ACIDS CONSISTING ESSENTIALLY OF ABOUT 25 MOL PERCENT CAPRYLIC ACID, ABOUT 15 MOL PERCENT METHYL PENTANOIC ACID, IN THE RANGE OF FROM ABOUT 15 TO ABOUT 20% PELARGONIC ACID, AND IN THE RANGE OF FROM ABOUT 40 TO ABOUT 45 MOL PERCENT VALERIC ACID, SAID MIXTURE OF ALKANOIC ACIDS HAVING THE RANGE OF FROM ABOUT 6.5 TO ABOUT 6.7 CARBON ATOMS PER ACID MOLECULE, SAID PELARGONIC AND CAPRYLIC ACIDS CONSISTING OF FROM ABOUT 51 1/2 TO ABOUT 57 MOL PERCENT OF SAID ALKANOIC ACIDS, SAID ALKANOIC ACIDS CONSISTING OF NOT MORE THAN 15 MOL PERCENT OF BRANCHED ACIDS, SAID COMPOSITION BEING CHARACTERIZED BY REMAINING LIQUID AND ALSO MAINTAINING ITS LUBRICITY AT -40*F, AND FURTHER CHARACTERIZED BY AN INITIAL KINEMATIC VISCOSITY OF NOT MORE THAN ABOUT 6800 CENTISTOKES AT -40*F.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |