Granted Patent
Utility
US 5,013,779 · App. 07/549,799
Plasticized polyvinyl butyral and interlayer thereof
Inventors:
Robert H. Fariss, Roland J. Tetreault
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jul 9, 1990
Inventors
Robert H. Fariss
Roland J. Tetreault
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.