Granted Patent
Utility
US 4,276,040 · App. 06/103,786
Pintle chain having extended wear barrel section and sprocket therefor
Inventor:
Victor D. Petershack
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Dec 14, 1979
Inventor
Victor D. Petershack
Assignee (at issue)
REXNORD GMBH
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.