Apparatus and method for door control | Patent Number 11952823
US 11952823 B2Filled DateNov 28, 2022
Priority DateJan 14, 2020
Publication DateMar 23, 2023
Expiration DateJan 13, 2040
Inventor/ApplicantsZhizhuo Wu
Ryan Carroll
Ryan Carroll
ExaminesPENDLETON, DIONNE
Art Unit2689
Technology Center2600
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