Granted Patent
Utility
US 5,610,238 · App. 08/537,498
Dissimilar arm asymmetric radial or star block copolymers for adhesives and sealants
Inventors:
Glenn R. Himes, Bridget A. Spence, Ronald J. Hoxmeier, Steven S. Chin
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Oct 2, 1995
Inventors
Glenn R. Himes
Bridget A. Spence
Ronald J. Hoxmeier
Steven S. Chin
Assignee (at issue)
SHELL OIL 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.