Granted Patent
Utility
US 4,783,577 · App. 07/099,720
Three service recessed afterset
Inventor:
Gregory L. Mohr
Patented Case
View Patent ↗
Granted: Nov 8, 1988
Filed: Sep 22, 1987
Inventor
Gregory L. Mohr
Assignee (at issue)
BUTLER MANUFACTURING 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.