Granted Patent
Utility
US 5,820,789 · App. 08/817,405
High voltage ceramic igniter
Inventors:
Craig A. Willkens, Linda S. Batemen
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Apr 3, 1997
Inventors
Craig A. Willkens
Linda S. Batemen
Assignee (at issue)
Saint-Gobain/Norton Industrial Ceramics 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.