Granted Patent
Utility
US 5,772,532 · App. 08/891,810
Golf ball
Inventors:
Joseph F. Stiefel, Donald J. Bunger
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Jul 14, 1997
Inventors
Joseph F. Stiefel
Donald J. Bunger
Assignee (at issue)
Lisco 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.