Adapter for laboratory filter
Patent 4251366 Issued on February 17, 1981. Estimated Expiration Date: 
June 18, 1999. 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.
June 18, 1999. 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 3010583 3295686 3437211 3463322 Laboratory glassware taper connector system with retainer and backup seal Patent #: 4135866 InventorsApplicationNo. 06/049444 filed on 06/18/1979US Classes:210/767, Separating210/406, Vacuumized filtrate receiver210/469, On or adjacent receptacle upper edge210/474, At upper edge of filtrate receiver210/541, ADJUNCTS422/104, Holder, support, housing, or hood422/937Joints; seals [B01L 3/00B4]ExaminersPrimary: Adee, JohnAttorney, Agent or FirmInternational ClassB01L 3/00 (20060101)AbstractAn adapter for a laboratory filtration unit includes an annular neck with a smooth outer surface and which slopes inwardly at its inner surface to form a funnel section and which has a collar threaded internally at its lower extremity and located beneath said annular neck. A transverse downwardly disposed ledge is defined between the collar and the funnel section and receives a gasket in abutment therewith. The adapter is utilized to filter a liquid medium from a conventional vacuum assisted laboratory filter unit directly into a conventional liquid storage container. | |
