US3342736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor for hydraulic fluids
Assignee: Dow Chemical Co
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Filing: 1964-02-03
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Granted: 1967-09-19
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Robert J Nankee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:43
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F5/00; C07F5/02; C07F5/022; C07F5/04; C23; C23F; C23F11/00; C23F11/08; C10M2201/00; C10M2201/06; C10M2201/063; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/084; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/04; C10M2207/046; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/107; C10M2209/108; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/06; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2010/02; C10N2010/06; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
75 words
A CONDENSATGE OF AN ALKYLENE GLYCOL CONTAINING 2 TO 6 CARON ATOMS AND A PENTABORATE SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKAINE EARTH METALS, SAID CONDENSATE BEING MADE BY HEATING AT ABOUT 100-200*C. A MIXTURE OF SAID BORATE SALT WITH AT LEAST ABOUT 20 MOLAR EQUIVALENTS OF SAID ALKYLENE GLYCOL UNTIL AT LEAST ONE MOLE OF WATER OF REACTION PER ATOM OF BORON IN THE BORTE HAS BEEN REMOVED.
Claim 2
Dependent Claim
75 words
A CONDENSATGE OF AN ALKYLENE GLYCOL CONTAINING 2 TO 6 CARON ATOMS AND A PENTABORATE SALT OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKAINE EARTH METALS, SAID CONDENSATE BEING MADE BY HEATING AT ABOUT 100-200*C. A MIXTURE OF SAID BORATE SALT WITH AT LEAST ABOUT 20 MOLAR EQUIVALENTS OF SAID ALKYLENE GLYCOL UNTIL AT LEAST ONE MOLE OF WATER OF REACTION PER ATOM OF BORON IN THE BORTE HAS BEEN REMOVED.
Claim 3
Dependent Claim
63 words
A CORROSION-INHIBITED HYDRAULIC FLUID CONSISTING ESSENTIALLY OF A BASE FLUID, AND, AS A CORROSION INHIBITOR THEREFOR, AN EFFECTIVE AMOUNT OF THE CONDENSATE DEFINED IN CLAIM 1, SAID BASE FLUID CONSISTING ESSENTIALLY OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ALKYLENE GLYCOLS, ALKYL ETHERS OF ALKYLENE GLYCOLS, POLYGLYCOLS, ALKYL ETHERS OF POLYGLYCOLS, FATTY ACID ESTERS OF POLYGLYCOLS, CASTOR OIL AND LOWER ALKANOLS.
References Cited (Backward Citations)
US2982733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |