Granted Patent
Utility
US 5,423,657 · App. 08/051,740
Prefeeder for stacked sheets of paperboard products
Inventors:
Terry M. Frost, Terry B. Smith, Jon P. Drake, Hugh F. Moran
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Apr 22, 1993
Inventors
Terry M. Frost
Terry B. Smith
Jon P. Drake
Hugh F. Moran
Assignee (at issue)
ASC Machine Tools, 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.