Granted Patent
Utility
US 4,332,202 · App. 06/162,474
Side bearing cage assembly
Inventor:
Harvey E. Amwake
Patented Case
View Patent ↗
Granted: Jun 1, 1982
Filed: Jun 24, 1980
Inventor
Harvey E. Amwake
Assignee (at issue)
Dresser Industries, Inc.
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.