US3249543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition containing a rhodanine compound
Assignee: Monsanto Research Corp
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Filing: 1963-04-30
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Granted: 1966-05-03
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Expires: 1983-04-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:15
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/36; C10M2207/00; C10M2207/04; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A FUNCTIONAL FLUID CONSISTING ESSENTIALLY OF A BASE FLUID CONSISTING OF A POLYPHENYL ETHER HAVING FROM 3 TO 7 BENZENE RINGS AND FROM 1 TO 6 OXYGEN ATOMS JOINING THE SAID BENZENE RINGS IN CHAINS AS ETHER LINKAGES, AND A LUBRICITY-IMPROVING AMOUNT OF A 3-AMINORHODANINE SCHIFF BASE PREPARED BY THE CONDENSATION OF A HYDROCARBYL COMPOUND TAKEN FROM THE GROUP CONSISTING OF HYDROCARBYL MONO AND DICARBOXYALDEHYDES WITH A RHODANINE COMPOUND TAKEN FROM THE GROUP CONSISTING OF 3-AMINORHODANINE AND 5-HYDROCARBYL-3-AMINORHODANINES, WHERE IN THE HYDROCARBON RADICALS IN THE SAID SCHIFF BASE ARE TAKEN FROM THE GROUP CONSISTING OF AROMATIC AND SATURATED ALIPHATIC HYDROCARBON RADICALS AND CONTAIN UP TO 14 CARBON ATOMS.
Claim 2
Dependent Claim
108 words
A FUNCTIONAL FLUID CONSISTING ESSENTIALLY OF A BASE FLUID CONSISTING OF A POLYPHENYL ETHER HAVING FROM 3 TO 7 BENZENE RINGS AND FROM 1 TO 6 OXYGEN ATOMS JOINING THE SAID BENZENE RINGS IN CHAINS AS ETHER LINKAGES, AND A LUBRICITY-IMPROVING AMOUNT OF A 3-AMINORHODANINE SCHIFF BASE PREPARED BY THE CONDENSATION OF A HYDROCARBYL COMPOUND TAKEN FROM THE GROUP CONSISTING OF HYDROCARBYL MONO AND DICARBOXYALDEHYDES WITH A RHODANINE COMPOUND TAKEN FROM THE GROUP CONSISTING OF 3-AMINORHODANINE AND 5-HYDROCARBYL-3-AMINORHODANINES, WHERE IN THE HYDROCARBON RADICALS IN THE SAID SCHIFF BASE ARE TAKEN FROM THE GROUP CONSISTING OF AROMATIC AND SATURATED ALIPHATIC HYDROCARBON RADICALS AND CONTAIN UP TO 14 CARBON ATOMS.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |