Granted Patent
Utility
US 5,176,180 · App. 07/495,010
Composite tubular member with axial fibers adjacent the side walls
Inventors:
Jerry G. Williams, Mark W. Hopkins
Patented Case
View Patent ↗
Granted: Jan 5, 1993
Filed: Mar 15, 1990
Inventors
Jerry G. Williams
Mark W. Hopkins
Assignee (at issue)
Conoco 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.