Goggle
Patent 4435852 Issued on March 13, 1984. Estimated Expiration Date: 
November 24, 2002. 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.
November 24, 2002. 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 1805633 1916630 3691565 3838466 Sport goggle Patent #: 4176410 InventorApplicationNo. 06/444321 filed on 11/24/1982US Classes:2/436By ventilation of shieldExaminersPrimary: Nerbun, PeterAttorney, Agent or FirmInternational ClassA61F 9/02 (20060101)AbstractA unique goggle is disclosed with improved ventilation means. The goggle includes a frame having a transparent lens across its forward side and the frame is secured to the head of the user by a strap or the like. In doing so, a goggle chamber is formed between the frame, lens and the head of the user. At least one ventilation port is formed through the frame which is open to the chamber while an elongated ventilation channel is secured to and extends rearwardly from the frame. One end of the channel is open to the goggle chamber while the other end of the channel is open rearwardly of the goggle frame. In use, air is evacuated from the goggle chamber and out through the ventilation channel by venturi forces. | |
