Granted Patent
Utility
US 5,097,870 · App. 07/495,053
Composite tubular member with multiple cells
Inventor:
Jerry G. Williams
Patented Case
View Patent ↗
Granted: Mar 24, 1992
Filed: Mar 15, 1990
Inventor
Jerry G. Williams
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.