Granted Patent
Utility
US 5,407,563 · App. 07/976,555
Screening panels
Inventor:
Peter R. Blake
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Nov 16, 1992
Inventor
Peter R. Blake
Assignee (at issue)
Brackett Green Limited
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.