Granted Patent
Utility
US 5,497,693 · App. 08/251,351
Replacement cylinder for cast iron block engine remanufacture
Inventor:
Michael S. Ward
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: May 31, 1994
Inventor
Michael S. Ward
Assignee (at issue)
Patent Master, 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.