Granted Patent
Utility
US 6,357,963 · App. 09/446,158
Concrete for jointing and method of jointing using said concrete
Inventors:
Yoichi Abe, Shoichi Kameta, Ryoichi Sato, Satoshi Tanaka, Rokuro Tomita
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Dec 17, 1999
Inventors
Yoichi Abe
Shoichi Kameta
Ryoichi Sato
Satoshi Tanaka
Rokuro Tomita
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.