Granted Patent
Utility
US 4,873,753 · App. 07/151,115
Control system for a rotation station for remotely installing a mechanical tube plug
Inventors:
Eric A. Kiesche, Samuel B. Crabtree
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Feb 1, 1988
Inventors
Eric A. Kiesche
Samuel B. Crabtree
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.