Granted Patent
Utility
US 6,040,088 · App. 08/837,405
Sodium polyacrylate gelling agent for zinc gelled anode
Inventors:
Patricia S. Bennett, Kenneth H. Kenyon, Ronald J. Ekern, Janna L. Rose, Josie B. Wieser
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Apr 15, 1997
Inventors
Patricia S. Bennett
Kenneth H. Kenyon
Ronald J. Ekern
Janna L. Rose
Josie B. Wieser
Assignee (at issue)
Rayovac 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.