Granted Patent
Utility
US 4,519,095 · App. 06/559,846
Adhesive channel closure for flexible bags
Inventor:
William J. Clayton
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Dec 9, 1983
Inventor
William J. Clayton
Assignee (at issue)
Mobil Oil Corporation
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.