Granted Patent
Utility
US 4,252,872 · App. 06/121,374
Granulated lead oxides with teflon
Inventor:
Ove Nilsson
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Feb 14, 1980
Inventor
Ove Nilsson
Assignee (at issue)
ESB 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.