Granted Patent
Utility
US 5,503,921 · App. 08/148,690
Core with foamed skin covering
Inventors:
Peter Mu-Hsin CHANG, Steven M. Moran
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Nov 5, 1993
Inventors
Peter Mu-Hsin CHANG
Steven M. Moran
Assignee (at issue)
Kransco
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.