Helmet retention system
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Description
The broken lines shown in the drawings represent portions of the helmet retention system that form no part of the claimed design.
Claims
The ornamental design for a helmet retention system, as shown and described.
Referenced Cited
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Patent History
Patent number: D810362
Type: Grant
Filed: Mar 24, 2015
Date of Patent: Feb 13, 2018
Assignee: GENTEX CORPORATION (Simpson, PA)
Inventors: John A. Hovan (Forest City, PA), Joseph Slivinski (Peckville, PA), Jillian Haldaman (Bath, PA)
Primary Examiner: Randall Gholson
Application Number: 29/521,510
Type: Grant
Filed: Mar 24, 2015
Date of Patent: Feb 13, 2018
Assignee: GENTEX CORPORATION (Simpson, PA)
Inventors: John A. Hovan (Forest City, PA), Joseph Slivinski (Peckville, PA), Jillian Haldaman (Bath, PA)
Primary Examiner: Randall Gholson
Application Number: 29/521,510
Classifications
Current U.S. Class:
Element Or Attachment (D29/122)