Drug delivery article
Patent 4917119 Issued on April 17, 1990. Estimated Expiration Date: 
November 30, 2008. 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 30, 2008. 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 2104266 3258015 3683936 3766079 3875083 3924603 Drain cleaning compositions Drain cleaning composition Exothermic composition and hot pack Process for the manufacture of synthetic smoking materials Inventors
AssigneeApplicationNo. 277731 filed on 11/30/1988US Classes:131/273, Smoking simulator128/200.14, LIQUID MEDICAMENT ATOMIZER OR SPRAYER128/202.21, Smoking device simulator128/203.15, Particulate treating agent carried by breathed gas128/204.13, Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.)128/204.17, Means for heating respiratory gas or respiration device131/194Heat exchanging and/or insulatingExaminersPrimary: Millin, V.Foreign Patent References
International ClassA61M 015/06AbstractA drug delivery article provides a dose of a volatilized drug by heating a drug carrying substrate, but not burning any material. A heat source which includes a metal oxide (e.g., calcium oxide), an anhydrous metal sulfate (e.g., magnesium sulfate), an inorganic salt and a sugar, generates heat upon contact of water therewith. The heat produced by the heat source heats the drug in a heat exchange relationship therewith. The drug volatilizes and is drawn into the mouth of the user of the article. Typical heat sources heat the drug to a temperature within 70° C. to 200° C. for 4 to 8 minutes.Field of SearchSmoking simulatorSpaced inner bowl Heat exchanging and/or insulating Cooling air passages Plural reversely extending passages Smoking device simulator Means for mixing treating agent with respiratory gas Means for supplying anesthetic under patient's control Particulate treating agent carried by breathed gas Electrically heated means producing water vapor Means for heating treating agent, respiratory gas, or mixture thereof Treating agent evaporated from extended surface absorbent (e.g., sponge, fibrous wick, screen, etc.) LIQUID MEDICAMENT ATOMIZER OR SPRAYER Pre-pressurized container holding medicament RESPIRATORY METHOD OR DEVICE | |
