Granted Patent
Utility
US 5,955,199 · App. 08/939,022
Imine-containing curative for two component polyurethane structural adhesives
Inventors:
Randy A. Johnson, Timothy A. Tufts
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Sep 26, 1997
Inventors
Randy A. Johnson
Timothy A. Tufts
Assignee (at issue)
Ashland, Inc.
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.