Granted Patent
Utility
US 6,196,237 · App. 09/346,633
Methods for washing cores of cored lettuce heads
Inventors:
Richard S. Brown, Eugene D. Rizzo
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jul 1, 1999
Inventors
Richard S. Brown
Eugene D. Rizzo
Assignee (at issue)
Fresh Express Incorporated
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.