Granted Patent
Utility
US 4,445,688 · App. 05/893,369
Bowling pin having an ionomer resin cladding
Inventors:
Fernando V. Frillici, Joseph R. Infantino
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Apr 4, 1978
Inventors
Fernando V. Frillici
Joseph R. Infantino
Assignee (at issue)
AMF GmbH
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.