Granted Patent
Utility
US 4,664,411 · App. 06/535,411
Method of and apparatus for removal and installation of outrigger box on cranes
Inventor:
Robert L. Fix
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Sep 26, 1983
Inventor
Robert L. Fix
Assignee (at issue)
Kidde Holding, 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.