Granted Patent
Utility
US 5,047,231 · App. 07/358,175
Raw hide containing an inorganic pyrophosphate
Inventors:
Henry C. Spanier, Lorna C. Staples, Felice Scaglione
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: May 30, 1989
Inventors
Henry C. Spanier
Lorna C. Staples
Felice Scaglione
Assignee (at issue)
Nabisco Brands, 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.