Granted Patent
Utility
US 6,716,913 · App. 09/723,263
Polyols containing grafted carboxyl groups and method of making same
Inventors:
Indulis Gruzins, Donald Farrell McElheney, Robert C. Hire, Jerry Douglas Necessary
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Nov 27, 2000
Inventors
Indulis Gruzins
Donald Farrell McElheney
Robert C. Hire
Jerry Douglas Necessary
Assignee (at issue)
Arch Chemicals, 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.