Granted Patent
Utility
US 4,511,772 · App. 06/493,479
Arc extinguishing structure for electrical switching device
Inventors:
Donald A. Link, John A. Swessel, Jr., Peter J. Theisen
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: May 11, 1983
Inventors
Donald A. Link
John A. Swessel, Jr.
Peter J. Theisen
Assignee (at issue)
Eaton 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.