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. 08, 1992
Filed:
Jun. 04, 1990
Applicant:
Inventors:
Ross A Tubo, Quincy, MA (US);
Susan F Schaeffer, Wayland, MA (US);
Alexander Schermer, Belmont, MA (US);
Richard Odessey, Newton Lower Falls, MA (US);
Assignee:
BioSurface Technology, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; A61K / ; A01N / ;
U.S. Cl.
CPC ...
435-1 ; 4352401 ; 424574 ; 62 62 ;
Abstract
Disclosed is a method of cryopreserving a sheet of living, cultured epithelial cells for use as a skin wound dressing. The method ensures that the integrity of the sheet will be maintained, and it preserves a significant number of cells in a mitotically competent, physiologically healthy form. It involves use of a non cell penetrating cryoprotectant and certain freezing and thawing conditions.