Granted Patent
Utility
US 6,484,341 · App. 09/795,647
Dough roller
Inventors:
Rolf Hefti, Walter Ruffner
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Feb 28, 2001
Inventors
Rolf Hefti
Walter Ruffner
Assignee (at issue)
The Pampered Chef, Ltd.
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.