Reusable vented flask cap cover
September 8, 2015. 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 3326401 3870602 Cultivation containers for cultures, microorganisms, cells, tissue and the like Container closure assembly having intermediate positioning means Dispensing closure employing living hinge Container and closure assembly having intermediate positioning means Filter cap Container and closure assembly having intermediate positioning means Sterilizable gas permeable container for use in culturing living cells Cell culture apparatus InventorsAssigneeApplicationNo. 525900 filed on 09/08/1995US Classes:435/288.1, Including a bottle, tube, flask, or jar215/317, Resilient distortion of closure skirt holds it in closed position215/320, Combined with stopper structure220/254.9, Secondary closure guided in reciprocating movement220/801, Juncture internal of passage mouth (e.g., stopper type closure)435/304.1Bottle, tube, jar, or flaskExaminersPrimary: Redding, David A.Attorney, Agent or FirmForeign Patent References
International ClassC12M 003/00AbstractA vessel and closure assembly for culturing cells wherein a gas permeable membrane is provided in the closure to allow rapid and uniform equilibration of gases between the atmosphere of the vessel and the atmosphere of the incubator. A plug is provided for occluding passage of gases through the gas permeable membrane when the vessel is removed from the controlled atmosphere of the incubator. |
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