Granted Patent
Utility
US 4,251,082 · App. 06/142,207
Joint seal having force transfer ring
Inventor:
William E. Little
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jan 21, 1980
Inventor
William E. Little
Assignee (at issue)
Caterpillar Tractor Co.
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.