Granted Patent
Utility
US 5,342,857 · App. 08/184,073
Process for producing polystyrene foam
Inventors:
Michael E. Reedy, Edward W. Rider, Jr.
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Jan 18, 1994
Inventors
Michael E. Reedy
Edward W. Rider, Jr.
Assignees (at issue)
REEDY INTERNATIONAL CORPORATION
Genpak, 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.