Granted Patent
Utility
US 5,981,683 · App. 07/925,347
Polyisocyanate adhesive and sealant systems
Inventors:
Herbert R. Gillis, John Robertson
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Aug 4, 1992
Inventors
Herbert R. Gillis
John Robertson
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.