Granted Patent
Utility
US 4,909,881 · App. 07/158,466
Bonding method effecting inter-ply adhesion between saran and linear ethylene copolymers
Inventor:
Steven B. Garland
Patented Case
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Granted: Mar 20, 1990
Filed: Feb 22, 1988
Inventor
Steven B. Garland
Assignee (at issue)
W.R. Grace & Co. Conn.
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.