Water softening device
Description
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines depict environment. The broken lines form no part of the claimed design.
Claims
The ornamental design of a water softening device, as shown and described.
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Patent History
Patent number: D895763
Type: Grant
Filed: Oct 29, 2018
Date of Patent: Sep 8, 2020
Inventors: Guohua Liu (Wuhu), Zhifeng He (Wuhu)
Primary Examiner: Sheryl Lane
Assistant Examiner: Calvin E Vansant
Application Number: 29/668,294
Type: Grant
Filed: Oct 29, 2018
Date of Patent: Sep 8, 2020
Inventors: Guohua Liu (Wuhu), Zhifeng He (Wuhu)
Primary Examiner: Sheryl Lane
Assistant Examiner: Calvin E Vansant
Application Number: 29/668,294
Classifications
Current U.S. Class:
Treatment (D23/207)