Granted Patent
Utility
US 4,834,932 · App. 07/108,663
Method for making an end connection for composite shafts
Inventors:
Ronald N. Salzman, Robert Blakley, Marlin D. Schutte, Keith T. McDermott
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Oct 15, 1987
Inventors
Ronald N. Salzman
Robert Blakley
Marlin D. Schutte
Keith T. McDermott
Assignee (at issue)
Federal Signal Corporation
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.