Granted Patent
Utility
US 6,617,364 · App. 10/235,367
Method for synthesizing thermo-expandable polymeric microspheres
Inventors:
David S. Soane, Michael R. Houston
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Sep 5, 2002
Inventors
David S. Soane
Michael R. Houston
Assignee (at issue)
Nanotex LLC
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.