Granted Patent
Utility
US 4,475,777 · App. 06/358,781
Split-ring roller bearing
Inventors:
Heinrich Hofmann, Rudi Eck
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Mar 16, 1982
Inventors
Heinrich Hofmann
Rudi Eck
Assignee (at issue)
Fag Kugelfischer Georg Shäfer AG
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.