Expansion screw
Latest Masterpiece Hardware Industrial Co. Ltd Patents:
Description
The broken lines in the drawings illustrate portions of the expansion screw and form no part of the claimed design.
Claims
The ornamental design for an expansion screw, as shown and described.
Referenced Cited
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Patent History
Patent number: D843825
Type: Grant
Filed: Jul 20, 2017
Date of Patent: Mar 26, 2019
Assignees: Masterpiece Hardware Industrial Co. Ltd (Changhua), (Changhua)
Inventor: Rick Wang (Changhua)
Primary Examiner: Sandra S Snapp
Assistant Examiner: Ieisha N Price
Application Number: 29/611,380
Type: Grant
Filed: Jul 20, 2017
Date of Patent: Mar 26, 2019
Assignees: Masterpiece Hardware Industrial Co. Ltd (Changhua), (Changhua)
Inventor: Rick Wang (Changhua)
Primary Examiner: Sandra S Snapp
Assistant Examiner: Ieisha N Price
Application Number: 29/611,380
Classifications
Current U.S. Class:
D8/385;
D8/387