Constant temperature heater
Description
The broken lines in the drawings illustrate portions of the constant temperature heater which form no part of the claimed design.
Claims
The ornamental design for a constant temperature heater, as shown and described.
Referenced Cited
U.S. Patent Documents
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- Coffee Mug Warmer, Vobaga 4 Hours Auto Shut-Off Coffee Warmer Plate for Office Home Desk Use with 3 Temperature Settings , 20watt Electric Cup Warmer for Cocoa,Tea, Water, Milk, (No Cup) https://www.amazon.com/dp/B07SW2YDMM/ref=cm_sw_r_em_api_i_4486Eb0BJF2E3 (Year: 2019).
Patent History
Patent number: D906037
Type: Grant
Filed: Jul 11, 2019
Date of Patent: Dec 29, 2020
Inventor: Houbing Yuan (Guangdong)
Primary Examiner: Ania Aman
Application Number: 29/697,736
Type: Grant
Filed: Jul 11, 2019
Date of Patent: Dec 29, 2020
Inventor: Houbing Yuan (Guangdong)
Primary Examiner: Ania Aman
Application Number: 29/697,736
Classifications
Current U.S. Class:
D7/362