Granted Patent
Utility
US 5,901,646 · App. 08/955,274
Screen printing machine having three axes screen registration with shiftable support vacuum table for web
Inventors:
Christopher Walker, Ivan B. Helmrich
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Oct 21, 1997
Inventors
Christopher Walker
Ivan B. Helmrich
Assignee (at issue)
Preco Industries, Inc.
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.