Granted Patent
Utility
US 4,844,919 · App. 07/072,376
Concave shaped snack food and process for preparing same
Inventor:
Joe Szwerc
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Jul 13, 1987
Inventor
Joe Szwerc
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.