Rigid protective helmet
Description
Claims
The ornamental design for a rigid protective helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D569555
Type: Grant
Filed: Mar 15, 2007
Date of Patent: May 20, 2008
Inventor: David B. Fowler (Bolivia, NC)
Primary Examiner: Holly H. Baynham
Attorney: Michael E. Mauney
Application Number: 29/273,903
Type: Grant
Filed: Mar 15, 2007
Date of Patent: May 20, 2008
Inventor: David B. Fowler (Bolivia, NC)
Primary Examiner: Holly H. Baynham
Attorney: Michael E. Mauney
Application Number: 29/273,903
Classifications
Current U.S. Class:
Cranial (D29/102)