IP Library › Granted Patent US 756,576
Granted Patent S1
US 756,576 · App. 29/437,954 · Granted May 17, 2016

Sweeping machine

Inventor: ZiSong Wang (Dongguan, CN)
Assignee: Dongguan Viper Cleaning Equipment Co., Ltd.
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Quick Facts
Patent No.
US 756,576
App. No.
29/437,954
Granted
May 17, 2016
Kind
S1
Claims (1)

The ornamental design for a sweeping machine, as shown and described.

Assignments (2)
CHANGE OF ADDRESS Recorded Nov 6, 2023
From: NILFISK A/S
To: NILFISK A/S
Reel/Frame 065472/0759 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2013
From: WANG, ZISONG
To: DONGGUAN VIPER CLEANING EQUIPMENT CO., LTD.
Reel/Frame 030317/0081 →
Priority Claims (1)
CN 2012 3 0192067 · May 23, 2012 · national