Ski goggles
Patent 5452480 Issued on September 26, 1995. Estimated Expiration Date: 
April 15, 2014. 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.
April 15, 2014. 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 References 2526737 2539284 3015987 3377626 3691565 3825953 Anti-fogging sports goggle Self-contained air conditioning unit for persons Goggles for ski use Detachable visor for a motorcycle helmet InventorAssigneeApplicationNo. 227451 filed on 04/15/1994US Classes:2/436, By ventilation of shield2/171.3With forced air circulatorExaminersPrimary: Nerbun, PeterAttorney, Agent or FirmInternational ClassA61F 009/02AbstractGoggles and eyeglasses worn in winter weather conditions are subject to fogging. A method of preventing condensation from forming on goggles and on eyeglasses worn under goggles is provided. The method involves using a fan to exhaust air from the air space between the goggles and a user's face. Continuous operation of the fan is designed to be inaudible and effective to prevent fogging. The method can involve use of a goggle ventilation design which improves wearer comfort. The goggle can also clear fogging which has occurred while the fan is not in operation. | |
