Granted Patent
Utility
US 4,981,639 · App. 07/319,177
Method of moulding racquets with stringing holes
Inventor:
Jonathan C. Mott
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Mar 6, 1989
Inventor
Jonathan C. Mott
Assignee (at issue)
Diversified Products, LLC
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.