PATLY.AIApplication
16232759 · HEAT TRANSFER TUBE AND CRACKING FURNACE USING THE SAME
Filed 2018-12-26 · Granted · Patent 11215404 (2022-01-04) The official file ↗The patent and its PDF ↗ · Art unit 3763 · Examiner Gordon A Jones Typical · CPC C10G 9/20 · BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER
Office actions
3
first was Restriction requirement
RCEs
1
no appeal
To first action
16.1 mo
to disposition 36.3 mo
Statutes raised
102 103 112
3 actions read