Nose filters
Patent 5568808 Issued on October 29, 1996. Estimated Expiration Date: 
August 8, 2015. 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.
August 8, 2015. 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 1823094 2057397 2241472 2277390 2526586 2660166 3884223 Nasal filter Resuscitator Nasal sealer and filter Patent #: 4573461 InventorAssigneeApplicationNo. 512468 filed on 08/08/1995US Classes:128/206.11, Including means inserted in nasal passage128/204.12, Holder solely supported by nose128/204.13, Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)128/205.27Means for removing substance from respiratory gasExaminersPrimary: Millin, VincentAssistant: Srivastava, V. Attorney, Agent or FirmInternational ClassA62B 023/06AbstractA disposable nose filter to be inserted in a nostril, including a flexible housing, a filter component and a flutter valve. The nose filter is adapted to be easily inserted and removed from the nostril. The flutter valve forms a seal with the lower exterior portion of the nostril, thus, forcing air through the filter and preventing air from passing between the housing and the inner walls of the nostril.Field of SearchTreating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)Holder solely supported by nose Means for removing substance from respiratory gas Particulate filtering Including means inserted in nasal passage BODY PROTECTING OR RESTRAINING DEVICES FOR PATIENTS OR INFANTS (E.G., SHIELDS, IMMOBILIZERS) Head or face protector (e.g., lips, ears, etc.) Eye or nose protectors Breath or contaminated air deflectors | |
