Granted Patent
Utility
US 4,574,136 · App. 06/523,305
Plasticized polyvinyl butyral interlayers
Inventor:
I. Luis Gomez
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Aug 15, 1983
Inventor
I. Luis Gomez
Assignee (at issue)
Monsanto Company
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.