Granted Patent
Utility
US 5,455,977 · App. 08/280,276
Bowling lane dressing apparatus with continuously variable speed drive
Inventors:
Stephen F. Caffrey, Bruce Hitchcock
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Jul 25, 1994
Inventors
Stephen F. Caffrey
Bruce Hitchcock
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.