Granted Patent
Utility
US 5,800,274 · App. 08/717,237
Bowling alley bumper system for producing visual effects
Inventors:
Kent L. Widrick, John Madsen, Winston Sanders, Darrin Bryant, Leonard Pauley
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Sep 20, 1996
Inventors
Kent L. Widrick
John Madsen
Winston Sanders
Darrin Bryant
Leonard Pauley
Assignee (at issue)
AMF Bowling, 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.