Granted Patent
Utility
US 6,576,048 · App. 08/121,402
Use of high bulk density methylcelluloses in aqueous fluid polymer suspensions
Inventors:
Charles L. Burdick, Thomas J. Podlas
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Sep 14, 1993
Inventors
Charles L. Burdick
Thomas J. Podlas
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.