IP Library Granted Patent US 4,851,287
Granted Patent Utility
US 4,851,287 · App. 07/149,993

Laminate comprising three sheets of a thermoplastic resin

Inventor: Tyler F. Hartsing, Jr.
Patented Case View Patent ↗
Granted: Jul 25, 1989 Filed: Jan 28, 1988
Inventor
Tyler F. Hartsing, Jr.

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.

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Quick Facts
Patent No.
US 4,851,287
App. No.
07/149,993
Filed
1988-01-28
Granted
1989-07-25
Kind
A