Granted Patent
Utility
US 4,318,347 · App. 06/116,684
Shiftable particle spheroidal side bearing
Inventor:
Thomas H. Watson
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Jan 30, 1980
Inventor
Thomas H. Watson
Assignee (at issue)
The Pullman Company LLC
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.