Granted Patent
Utility
US 5,274,887 · App. 08/048,506
Swivel hook assembly
Inventor:
Tsutomu Fudaki
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Apr 20, 1993
Inventor
Tsutomu Fudaki
Assignee (at issue)
Yoshida Kogyo K.K.
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.