Granted Patent
Utility
US 5,736,088 · App. 08/715,082
Method of making a plastic knuckle pin
Inventors:
Michael K. Burke, John D. Anderson
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Sep 19, 1996
Inventors
Michael K. Burke
John D. Anderson
Assignee (at issue)
ZefTek, 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.