Air filter for the nose
Patent 5417205 Issued on May 23, 1995. Estimated Expiration Date: 
June 7, 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.
June 7, 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 ReferencesInventorApplicationNo. 255244 filed on 06/07/1994US Classes:128/206.11, Including means inserted in nasal passage128/204.12, Holder solely supported by nose128/858Eye or nose protectorsExaminersPrimary: Hafer, Robert A.Assistant: O'Neill, Michael Attorney, Agent or FirmForeign Patent References
International ClassA61M 015/08AbstractAn air filter including two filter units linked by a connecting element for inserting into the nostrils of the nose to filtrate air passing through, each filter unit including a barrel, a first wire gauze filter fastened to the barrel at one end, a second wire gauze filter fastened to the barrel at an opposite end, and a stack of wet filter cloth received inside the barrel and retained between the first wire gauze filter and the second wire gauze filter.Field of SearchIncluding means inserted in nasal passageParticulate filtering Means for removing substance from respiratory gas Holder solely supported by nose Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.) Eye or nose protectors Head or face protector (e.g., lips, ears, etc.) Breath or contaminated air deflectors BODY PROTECTING OR RESTRAINING DEVICES FOR PATIENTS OR INFANTS (E.G., SHIELDS, IMMOBILIZERS) | |
