Granted Patent
Utility
US 5,749,331 · App. 08/516,976
Powdered metal cylinder liners
Inventors:
Bjorn Pettersson, Alex Plavnik, Eric Boreczky
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Aug 18, 1995
Inventors
Bjorn Pettersson
Alex Plavnik
Eric Boreczky
Assignee (at issue)
Tecsyn, 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.