Granted Patent
Utility
US 5,224,419 · App. 07/894,432
Stencil master plate making printing device
Inventor:
Shigeki Fukai
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Jun 5, 1992
Inventor
Shigeki Fukai
Assignee (at issue)
RISO KAGAKU CORPORATION
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.