Granted Patent
Utility
US 5,101,579 · App. 07/389,775
Sound deadening ballet shoe
Inventors:
Donald Terlizzi, Daniel Leva, Philip L. Rossi
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Aug 4, 1989
Inventors
Donald Terlizzi
Daniel Leva
Philip L. Rossi
Assignee (at issue)
Ballet Makers, 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.