Granted Patent
Utility
US 6,347,643 · App. 09/701,621
Gas outlet barrel retention apparatus
Inventors:
Robert L. Cope, III, David M. Garner, Eric R. Colburn
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: Dec 1, 2000
Inventors
Robert L. Cope, III
David M. Garner
Eric R. Colburn
Assignee (at issue)
HILL-ROM SERVICES, 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.