Granted Patent
Utility
US 5,609,273 · App. 08/398,557
Barrier packaging and materials therefor
Inventors:
Bruce A. Firestone, Matthew A. Dickason
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Mar 3, 1995
Inventors
Bruce A. Firestone
Matthew A. Dickason
Assignee (at issue)
Allergan, 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.