Granted Patent
Utility
US 4,557,560 · App. 06/551,797
Rodent and lightning protective sheath system for cables
Inventors:
William D. Bohannon, Jr., Roy P. Collins, Michael D. Kinard, William C. L. Weinraub
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Nov 15, 1983
Inventors
William D. Bohannon, Jr.
Roy P. Collins
Michael D. Kinard
William C. L. Weinraub
Assignees (at issue)
AT&T Technologies Incorporated
AT&T Bell Laboratories
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.