Granted Patent
Utility
US 4,832,905 · App. 07/181,805
Lower end fitting debris collector
Inventors:
William J. Bryan, Harold V. Lichtenberger
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Apr 15, 1988
Inventors
William J. Bryan
Harold V. Lichtenberger
Assignee (at issue)
Combustion Engineering, 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.