Granted Patent
Utility
US 6,548,145 · App. 09/852,896
Roofing granules with a decorative metallic appearance
Inventor:
Ingo B. Joedicke
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: May 10, 2001
Inventor
Ingo B. Joedicke
Assignee (at issue)
ISP INVESTMENTS 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.