Granted Patent
Utility
US 4,791,525 · App. 07/115,692
Circuit breaker with retainer for filler plate
Inventors:
William E. Grass, Donald R. Sladek
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Nov 2, 1987
Inventors
William E. Grass
Donald R. Sladek
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.