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:
Feb. 11, 1986
Filed:
May. 21, 1984
Applicant:
Inventors:
Sheldon Penman, Brookline, MA (US);
Edward G Fey, Boston, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12Q / ; C12R / ;
U.S. Cl.
CPC ...
436 64 ; 435 29 ; 4351721 ; 435948 ;
Abstract
A composition is tested to determine whether it is a tumor promoter or a complete carcinogen by exposing a stable epithelial cell line to the composition for an incubation time period sufficient to induce morphological changes in the cell line. After the incubation time, the cells are observed by morphology changes induced by the composition, which changes are compared to that caused by a known tumor promoter or a known complete carcinogen.