Granted Patent
Utility
US 5,779,554 · App. 08/828,335
Three-dimensional bowling alley masking unit
Inventors:
Winston Sanders, John Madsen, Sean Anderson
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Mar 28, 1997
Inventors
Winston Sanders
John Madsen
Sean Anderson
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.