Granted Patent
Utility
US 6,648,546 · App. 09/622,515
Structure for embedding embedded-type light
Inventors:
Yoichi Abe, Katsuhiko Hagiwara, Shoichi Kameta, Shunji Kawabata, Ryoichi Sato
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Jan 16, 2001
Inventors
Yoichi Abe
Katsuhiko Hagiwara
Shoichi Kameta
Shunji Kawabata
Ryoichi Sato
Assignee (at issue)
New Tokyo International Airport Authority
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.