Granted Patent
Utility
US 6,251,226 · App. 09/252,923
Apparatus for manufacturing papers with watermarks or patterns
Inventors:
Giuseppe Fedrigoni, Alberto De Luca
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Feb 19, 1999
Inventors
Giuseppe Fedrigoni
Alberto De Luca
Assignee (at issue)
Cartiere Fedrigoni E C. S.p.A.
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.