Cigarettepipe with purifier
Patent 4215708 Issued on August 5, 1980. Estimated Expiration Date: 
February 23, 1998. 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.
February 23, 1998. 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. 05/880720 filed on 02/23/1978US Classes:131/333, By electric, magnetic, or radioactive action131/200Smoke treatingExaminersPrimary: Pellegrino, Stephen C.Attorney, Agent or FirmInternational ClassesA24F 13/04 (20060101)A24F 13/00 (20060101) Foreign Application Priority Data1977-03-02 NLAbstractPipe for cigarettes, cigars and other tobacco articles, provided with a holder with a receiving hollow at one end for the cigarette, that is connected through a smoke channel with a mouthpiece at the other end of the holder, an apparatus being fixed in the smoke channel for purifying the smoke, said apparatus comprising a catalytic afterburner for the complete smoke flow with which the incompletely burnt hydrocarbons and carbon monoxide are being burnt more completely, the nicotine and tar contents being reduced substantially, said afterburner having a catalytic operation, and comprises an electric incandescent body. | |
