Method and apparatus for user sizable furnace filter and holder
Patent 5087276 Issued on February 11, 1992. Estimated Expiration Date: 
January 15, 2011. 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.
January 15, 2011. 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 2175903 2852094 3675402 Air-pollution filter and face mask Patent #: 4141703 InventorAssigneeApplicationNo. 641284 filed on 01/15/1991US Classes:55/496, With adjustable connector or size adjusting means96/134Plural diverse separating meansExaminersPrimary: Hart, Charles N.International ClassesB01D 046/10B01D 053/04 AbstractA furnace filter and holder are presented which are capable of being adapted to any one of a number of furnace sizes as selected by the user. The holder and filter and a filter support are capable of being sized to user selected dimensions through the use of templates provided on the carton in which the components are packaged.Field of SearchSEPARATING MEDIA ADJUSTABLE TO VARIOUS POSITIONS OF USE OR TO NONUSEWITH MEANS ADJUSTABLE TO CONTROL COMPACTNESS OF SEPARATING MEDIA With framework for edge to edge relation Three or more serially spaced With adjustable connector or size adjusting means Deflector and fibrous, filamentary, particulate solids, or cohesive sheet filter type | |
