Granted Patent
Utility
US 4,313,099 · App. 06/109,238
Current limiting fuse having aluminum sulfate arc-quenching filler
Inventor:
John Ackermann
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Jan 3, 1980
Inventor
John Ackermann
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.