Granted Patent
Utility
US 4,258,083 · App. 06/024,648
Tread end cementer
Inventor:
Ronald E. Allen
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: Mar 28, 1979
Inventor
Ronald E. Allen
Assignee (at issue)
B. F. Goodrich Company
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.