USD935493SActiveUtility

Heat transfer machine

81
Assignee: Cheng Zhi GangPriority: Nov 4, 2020Filed: Nov 4, 2020Granted: Nov 9, 2021
Est. expiryNov 4, 2040(~14.2 yrs left)· nominal 20-yr term from priority
Inventors:Zhi Cheng
81
PatentIndex Score
16
Cited by
17
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a heat transfer machine, as shown and described.

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