Application

18545240 · METHOD AND APPARATUS FOR FIRE VENTILATION AND SMOKE EVACUATION IN RUNNING TRAIN TUNNEL

Filed 2023-12-19 · Granted The official file ↗ · Art unit 3762 · Examiner Michael James Giordano Typical · CPC E21F 1/003 · CHINA ACADEMY OF SAFETY SCIENCE AND TECHNOLOGY · HONGKONG IP

Office actions

first was Non-final rejection

RCEs

no appeal

To first action

27.4 mo

to disposition 30.8 mo

Statutes raised

102 112

1 actions read

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