Granted Patent
Utility
US 4,676,482 · App. 06/856,269
Valve seat insert
Inventors:
Marvin P. Reece, Peter Boote
Patented Case
View Patent ↗
Granted: Jun 30, 1987
Filed: Apr 28, 1986
Inventors
Marvin P. Reece
Peter Boote
Assignee (at issue)
REXNORD GMBH
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.