Granted Patent
Utility
US 5,421,925 · App. 07/986,307
Welded foam panels
Inventors:
Leonard J. Kulaszewicz, Dale Scott Crombez
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Dec 7, 1992
Inventors
Leonard J. Kulaszewicz
Dale Scott Crombez
Assignee (at issue)
Ford Motor 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.