Gas-fitted protective helmet
Patent 5014365 Issued on May 14, 1991. Estimated Expiration Date: 
January 23, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 23, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorAssigneeApplicationNo. 300329 filed on 01/23/1989US Classes:2/412, By diverse laminae2/413, By fluid-containing cushion2/414, By interior pads2/425, Sport headgear2/909Head protector (e.g., helmet, goggles, etc.)ExaminersPrimary: Reynolds, Wm. CarterAttorney, Agent or FirmForeign Patent References
International ClassesA42B 003/02A63B 071/16 AbstractA protective helmet employs an inflatable bladder on the interior of the helmet. The inflatable bladder has cells that extend to the lower rear octants of the wearers head and also to either the crown or upper front octants of the wearers head. The cells are inflatable through a single valve and properly secure the helmet to the wearers head during use. In the preferred embodiment, the helmet is fully lined with resilient material interposed between the bladder and the wearer's head. | |
