US3634243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing suspended matter from cutting fluids and cutting oils by addition of cationic surfactants
Assignee: Milacron Inc
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Filing: 1969-01-09
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Granted: 1972-01-11
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Expires: 1989-01-09
Abstract
Abstract CATIONIC SURFACTANTS, E.G., QUATERNIZED DIMER TETRAMINE AND RELATED POLYMERIC FATTY POLYQUATERNARY AMMONIUM COMPOUNDS SUCH AS THOSE DERIVED FROM DIMER ACID AMINES, ARE ADDED TO AQUEOUS COOLANT FLUIDS OR CUTTING OILS TO ASSIST THE REMOVAL OF THE FINE SUSPENDED MATTER WHICH ACCUMU LATES DURING CUTTING OR GRINDING OF METALS, PLASTIC, GLASS, ETC. WITHOUT THE ADDITION OF THE CATIONIC SURFACTANT COMPOUND, A PORTION OF THE FINEST MATTER REMAINS SUSPENDED AND CANNOT BE REMOVED BY CONVENTIONAL METHODS SUCH AS FILTRATION.
Inventors
- 👤 Robert F Wessels
- 👤 Ralph Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:21
CPC Classifications
C; C10; C10M; C10M3/00; C10M2201/00; C10M2201/06; C10M2201/062; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/087; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |