Granted Patent
Utility
US 4,723,055 · App. 07/026,766
Multi-wire conduit dam and method of forming same
Inventor:
Richard G. Bisker
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Mar 17, 1987
Inventor
Richard G. Bisker
Assignee (at issue)
Dresser Industries, 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.