Granted Patent
Utility
US 5,490,445 · App. 08/213,400
Ultra low device volume piston system
Inventors:
V. Durga Nageswar Rao, David A. Yeager
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Mar 14, 1994
Inventors
V. Durga Nageswar Rao
David A. Yeager
Assignee (at issue)
Ford Motor 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.