Granted Patent
Utility
US 6,504,144 · App. 09/451,700
Overhead-traveling carrying apparatus
Inventor:
Masanao Murata
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Dec 1, 1999
Inventor
Masanao Murata
Assignee (at issue)
Shinko Electric Co., Ltd.
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.