Face mask having an air duct connectable to a goggle
Patent 4653124 Issued on March 31, 1987. Estimated Expiration Date: 
July 16, 2005. 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.
July 16, 2005. 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 ReferencesInventorsAssigneeApplicationNo. 06/755456 filed on 07/16/1985US Classes:2/427, Included in shield for face128/206.21, Face mask covering a breathing passage2/436, By ventilation of shield2/9, FaceD24/110.1MaskExaminersPrimary: Schroeder, Werner H.Assistant: Falik, Andrew M. Attorney, Agent or FirmInternational ClassA61F 9/02 (20060101)AbstractA releasably attachable face mask that forms a contiguous channel with an attached goggle to improve goggle ventilation. An elongated pocket or duct formed between two surfaces on the face mask mates with the goggle ventilation system to form the contiguous channel.The channel forms a venturi to draw air out from the goggle interior to the atmosphere through the contiguous channel. | |
