Granted Patent
Utility
US 4,882,113 · App. 07/303,520
Heterogeneous elastomeric compositions containing a fluoroelastomer and PTFE and methods for manufacturing said compositions
Inventors:
Roger Tu, Wilfred F. Mathewson
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Jan 26, 1989
Inventors
Roger Tu
Wilfred F. Mathewson
Assignee (at issue)
Baxter International Inc.
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.