Granted Patent
Utility
US 5,591,307 · App. 08/454,604
Paper containing a filler
Inventor:
Arnold Storeck
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: May 31, 1995
Inventor
Arnold Storeck
Assignee (at issue)
Degussa AG
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.