Granted Patent
Utility
US 5,375,569 · App. 08/190,741
Multi polymer structures for internal combustion engines
Inventor:
Joel Santella
Patented Case
View Patent ↗
Granted: Dec 27, 1994
Filed: Jan 26, 1994
Inventor
Joel Santella
Assignee (at issue)
General Electric 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.