Granted Patent
Utility
US 5,701,861 · App. 08/278,739
Cylinder with hybrid bore surface
Inventors:
Timothy A. Hegemier, John D. Binford
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Jul 22, 1994
Inventors
Timothy A. Hegemier
John D. Binford
Assignee (at issue)
DANA LIMITED
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.