Granted Patent
Utility
US 4,890,941 · App. 07/338,969
Bearing protector with slinger ring
Inventors:
Dag O. Calafell, II, Kenneth G. Kakabaker
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Apr 14, 1989
Inventors
Dag O. Calafell, II
Kenneth G. Kakabaker
Assignee (at issue)
Durametallic 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.