Granted Patent
Utility
US 5,116,493 · App. 07/674,698
Artificial pancreatic perfusion device with reseedable matrix
Inventors:
William L. Chick, Randall G. Rupp
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Mar 25, 1991
Inventors
William L. Chick
Randall G. Rupp
Assignee (at issue)
W.R. Grace & Co. Conn.
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.