Granted Patent
Utility
US 5,723,506 · App. 08/740,779
Extruded polymer foam with filler particles and method
Inventors:
Sammie Joe Glorioso, James H. Burgess
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Nov 1, 1996
Inventors
Sammie Joe Glorioso
James H. Burgess
Assignee (at issue)
Apache Products 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.