Granted Patent
Utility
US 6,046,259 · App. 08/669,815
Stable aqueous dispersions of cellulose esters and their use in coatings
Inventors:
Suryya K. Das, Soner Kilic, Robyn E. McMillan
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Jun 27, 1996
Inventors
Suryya K. Das
Soner Kilic
Robyn E. McMillan
Assignee (at issue)
PPG Industries Ohio, 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.