Granted Patent
Utility
US 5,267,732 · App. 07/923,562
Wall mounted sliding block puzzle
Inventors:
Walter Lee Bowen, Neal A. Crites, Peter K. Ephland
Patented Case
View Patent ↗
Granted: Dec 7, 1993
Filed: Aug 3, 1992
Inventors
Walter Lee Bowen
Neal A. Crites
Peter K. Ephland
Assignee (at issue)
Soft Play, 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.