Granted Patent
Utility
US 4,825,923 · App. 07/096,641
Traction cable
Inventors:
David Blankenship, Richard A. George, Steven E. Czaplewski
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Sep 11, 1987
Inventors
David Blankenship
Richard A. George
Steven E. Czaplewski
Assignee (at issue)
Peerless Chain Company
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.