Granted Patent
Utility
US 4,460,652 · App. 06/468,783
Thromboresistant molded article and method for its production
Inventor:
Peter Francis
Patented Case
View Patent ↗
Granted: Jul 17, 1984
Filed: Feb 22, 1983
Inventor
Peter Francis
Assignee (at issue)
Atlantic Richfield Company
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.