Granted Patent
Utility
US 4,472,152 · App. 06/337,610
Igniter constructions and methods of making the same
Inventor:
Harvey J. Shopsky
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Jan 7, 1982
Inventor
Harvey J. Shopsky
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.