Application

11582311 · DRILLING FLUID

Filed 2006-10-18 · Granted · Patent 7338593 (2008-03-04) The official file ↗The patent and its PDF ↗ · Art unit 1764 · Examiner John Christopher Douglas · CPC C09K 8/32 · NORTON ROSE FULBRIGHT CANADA LLP

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

5.0 mo

to disposition 16.5 mo

Statutes raised

0 actions read

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