Granted Patent
Utility
US 6,521,219 · App. 09/724,377
Method of repairing or restoring damaged or imperfect hair
Inventor:
Yoshihiro Hirata
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Nov 27, 2000
Inventor
Yoshihiro Hirata
Assignee (at issue)
Phild 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.