Granted Patent
Utility
US 6,552,128 · App. 09/968,611
Rubber composition
Inventors:
Ayumu Ikemoto, Koji Senda
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Oct 2, 2001
Inventors
Ayumu Ikemoto
Koji Senda
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.