Granted Patent
Utility
US 5,624,971 · App. 08/674,242
Foamed polymer and process for production thereof
Inventor:
Robert N. Wilson
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Jul 1, 1996
Inventor
Robert N. Wilson
Assignee (at issue)
Woodbridge Foam Corporation
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.