Granted Patent
Utility
US 4,381,179 · App. 06/272,989
Pumps with floating wrist pins
Inventor:
Ramon Pareja
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Jun 12, 1981
Inventor
Ramon Pareja
Assignee (at issue)
Lear Siegler, 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.