Granted Patent
Utility
US 4,816,442 · App. 06/928,760
Method of inhibiting tumor growth sensitive to CIF-.beta.treatment
Inventors:
John M. McPherson, Danile R. Twardzik, George J. Todaro, Karl A. Piez, Jane E. Ranchalis
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Nov 7, 1986
Inventors
John M. McPherson
Danile R. Twardzik
George J. Todaro
Karl A. Piez
Jane E. Ranchalis
Assignee (at issue)
COLLAGEN CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.