Application

15204167 · BUTADIENE EXTRACTION PRE-ABSORBER

Filed 2016-07-07 · Granted · Patent 10081581 (2018-09-25) The official file ↗The patent and its PDF ↗ · Art unit 1772 · Examiner Tam M Nguyen Easy · CPC C07C 7/10 · Lummus Technology Inc. · Osha Bergman Watanabe & Burton LLP / Lummus

Office actions

first was Restriction requirement

RCEs

no appeal

To first action

12.6 mo

to disposition 26.6 mo

Statutes raised

103 112

1 actions read

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