The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1991
Filed:
Aug. 17, 1987
Martin J Cline, Pacific Palisades, CA (US);
Other;
Abstract
A gas permeable culture flask and method for culturing mammalian cells wherein a gas permeable insert is provided in the flask to allow rapid and uniform equilibration of gases between the atmosphere of the culture flask and the atmosphere of the incubator into which the flask is placed for culturing. The size of the gas permeable insert relative to the overall surface area of the flask is limited to allow the flask to be removed from the incubator for observation, testing and culture treatment for relatively long times without substantial changes to the flask atmosphere. Alternatively, removable covers are provided for occluding passage of gases through the gas permeable insert when the flask is removed from the controlled atmosphere of the incubator.