Granted Patent
Utility
US 6,722,600 · App. 09/836,423
Seat belt retractor
Inventors:
Tetsuya Hamaue, Hiroki Takehara, Hikaru Kameyoshi, Isamu Mizuno
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Apr 18, 2001
Inventors
Tetsuya Hamaue
Hiroki Takehara
Hikaru Kameyoshi
Isamu Mizuno
Assignee (at issue)
TAKATA CORPORATION
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.