Granted Patent
Utility
US 5,195,641 · App. 07/599,013
Sorting line for processing envelopes, particularly for photographic laboratories
Inventor:
Roberto Signoretto
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Oct 17, 1990
Inventor
Roberto Signoretto
Assignee (at issue)
Systel International 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.