Cigarette holder
Patent 4637407 Issued on January 20, 1987. Estimated Expiration Date: 
February 28, 2005. 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 28, 2005. 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 ReferencesAutomatic smoking device Patent #: 4164230 InventorsAssigneeApplicationNo. 06/706650 filed on 02/28/1985US Classes:131/175, Cigar or cigarette holders131/178, Combined or convertible131/187, Cigar and cigarette holders131/195, Cooling air passages131/198.1Supplemental or substitute air inletExaminersPrimary: Millin, V.Attorney, Agent or FirmInternational ClassesA24F 13/00 (20060101)A24F 13/14 (20060101) A24F 13/06 (20060101) AbstractA fire safe, environmentally protective cigarette holder for fully enveloping a lit cigarette and in which an internal power source maintains a flow of air to the lit portion and drives the exhaust smoke through a filter before it is vented to the atmosphere, thus filtering products of combustion which are not drawn in by the smoker. Additional filtering means which can include the cigarette itself can be utilized to filter the drawn smoke. | |
