| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 12.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
- Mixing liquid CO2 with lubricant compn comprising oil & solid particles, thereby to form mixt comprising solid parti cles & soln comprising oil dissolved in the CO2 - Filtering mixt through filter medium retaining solid particles - Evaporating said CO2 from soln, thereby to form residue comprising oil |
| PATENT PHOTOCOPY | Available on request |
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