Granted Patent
Utility
US 6,071,028 · App. 09/277,221
High product retention elevator cup
Inventor:
Rennold L. Klawson
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Mar 27, 1999
Inventor
Rennold L. Klawson
Assignee (at issue)
Carter Wallace, 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.