Granted Patent
Utility
US 4,765,620 · App. 07/004,376
Racket vibration dampener combined with grommet strip
Inventor:
Richard Janes
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Jan 16, 1987
Inventor
Richard Janes
Assignee (at issue)
Spalding & Evenflo Companies, 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.