Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mark Frey0
Date of Patent
May 22, 2018
0Patent Application Number
142227600
Date Filed
March 24, 2014
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved protective helmet having an outer impact receiving shell, and inner protective shell and an intermediate piston interposed between the outer and inner shells which allows the inner shell to decelerate gradually when the outer shell is subjected to a sudden impact, and which, therefore, permits the brain to decelerate safely.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
