Granted Patent
Utility
US 4,484,686 · App. 06/371,133
Multiple offset boom extension
Inventor:
William R. Mentzer
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Apr 23, 1982
Inventor
William R. Mentzer
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.