Granted Patent
Utility
US 4,991,335 · App. 07/331,433
Collapsible triangular mobile
Inventor:
Richard G. Krautsack
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Mar 31, 1989
Inventor
Richard G. Krautsack
Assignee (at issue)
Comark Merchandising, 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.