Granted Patent
Utility
US 6,533,231 · App. 09/692,114
Method for manufacturing a lifting hook and a lifting hook
Inventor:
Ari Kiviniitty
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Oct 20, 2000
Inventor
Ari Kiviniitty
Assignee (at issue)
KCi Konecranes International PLC
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.