Granted Patent
Utility
US 5,009,427 · App. 07/534,087
Golf ball
Inventors:
Joseph F. Stiefel, Terence Melvin, R. Dennis Nesbitt
Patented Case
View Patent ↗
Granted: Apr 23, 1991
Filed: Jun 6, 1990
Inventors
Joseph F. Stiefel
Terence Melvin
R. Dennis Nesbitt
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.