Granted Patent
Utility
US 5,100,950 · App. 07/262,251
Rubber and fluorocarbon micropowder composition
Inventors:
Douglas W. Carlson, William David Breach
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Oct 20, 1988
Inventors
Douglas W. Carlson
William David Breach
Assignee (at issue)
Hydril 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.