Granted Patent
Utility
US 6,734,274 · App. 09/940,787
Urethane composition for sheet transport roll, and sheet transport roll produced by employing the urethane composition
Inventors:
Satoshi Suzuki, Hitoshi Yoshikawa, Yoshihiro Wago, Keita Shiraki
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Aug 29, 2001
Inventors
Satoshi Suzuki
Hitoshi Yoshikawa
Yoshihiro Wago
Keita Shiraki
Assignee (at issue)
TOKAI RUBBER INDUSTRIES, 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.