Granted Patent
Utility
US 6,785,964 · App. 10/276,252
Method for making a mechanical screen cylinder
Inventor:
Reig Raphaël
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Nov 15, 2002
Inventor
Reig Raphaël
Assignee (at issue)
Johnson Filtration Systems
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.