Granted Patent
Utility
US 6,652,435 · App. 09/832,068
Automated system and method for forming two stage cup
Inventor:
Dale L. Sand
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Apr 10, 2001
Inventor
Dale L. Sand
Assignee (at issue)
Paper Machinery 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.