Granted Patent
Utility
US 5,488,888 · App. 08/048,638
Method of forming bridges in tamper indicating closures
Inventor:
Timothy B. Kowal
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Apr 19, 1993
Inventor
Timothy B. Kowal
Assignee (at issue)
Owens-Illinois Closure 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.