Granted Patent
Utility
US 5,758,745 · App. 08/685,191
Extension ladder, combination end cap/guide bracket, and method for climbing
Inventors:
Robert D. Beggs, Mitchell H. Hetrich, Christine A. Leipheimer, Marc A. Mabie
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: Jul 18, 1996
Inventors
Robert D. Beggs
Mitchell H. Hetrich
Christine A. Leipheimer
Marc A. Mabie
Assignee (at issue)
Werner Co.
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.