Granted Patent
Utility
US 4,946,593 · App. 07/401,495
Rubber composition for use with potable water
Inventor:
Edward P. Pinigis
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Aug 29, 1989
Inventor
Edward P. Pinigis
Assignee (at issue)
Acushnet 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.