Granted Patent
Utility
US 4,292,231 · App. 06/124,675
Pressure sensitive adhesion compositions
Inventors:
Hans R. L. Gabriel, Larry K. Post, Billy M. Culbertson, Curtis Graham
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Feb 26, 1980
Inventors
Hans R. L. Gabriel
Larry K. Post
Billy M. Culbertson
Curtis Graham
Assignee (at issue)
Ashland Oil, 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.