Granted Patent
Utility
US 4,400,132 · App. 06/275,795
Skidding grapple having winch-line capability
Inventors:
Richard R. Deline, William R. Miner
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Jun 22, 1981
Inventors
Richard R. Deline
William R. Miner
Assignee (at issue)
ESCO GROUP 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.