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:
Apr. 23, 1991
Filed:
Nov. 21, 1989
Applicant:
Inventor:
Rolf Gebhardt, 7400 Tubingen 7, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12M / ;
U.S. Cl.
CPC ...
435310 ; 435289 ; 435290 ; 435313 ;
Abstract
In a perifusion apparatus for culturing living cells, the culture medium and the gas in the culture chamber are separated from one another by a gas-permeable wall, the liquid area being entirely filled with the culture medium. Gassing takes place through the gas-permeable wall. Several culture chambers can be interconnected as plug-in modules in such a way that common means can be used for liquid circulation, gassing and optionally thermizing.