Class 2/411 - Including energy-absorbing means

Subclass of Class 2 - Apparel
Definition: Device provided with means on or in a helmet to cushion
No. of patents: 242
Last issue date: 05/01/2012

Number	Title	Issue Date
4012794	Impact-absorbing helmet An impact-absorbing helmet comprising an inner, substantially-stationary, shell member formed as an integral part of the base member, including a separate outer shell member superposed over the inner shell member and rotatably attached thereto, the rotati...	03/22/1977
3992722	Protective helmet Various embodiments of energy absorbing, protective helmets constructed of resilient foam means covered with a tough, pliable surface coating. The helmets are adapted to be worn on a person's head and have openings therein generally conforming to a perso'...	11/23/1976

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