Granted Patent
Utility
US 4,634,124 · App. 06/688,855
Vibration damped sports racquet
Inventors:
Drew J. Yuhas, Joseph F. Boggia
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Jan 4, 1985
Inventors
Drew J. Yuhas
Joseph F. Boggia
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.