Granted Patent
Utility
US 5,670,490 · App. 08/585,834
Porous particle aggregate and method therefor
Inventor:
Roy L. Whistler
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Jan 16, 1996
Inventor
Roy L. Whistler
Assignee (at issue)
Fuisz Technologies Ltd.
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.