Granted Patent
Utility
US 6,492,454 · App. 09/542,044
Rubber composition containing rubber, mercapto-triazine and epoxy grafter polymer
Inventors:
Osamu Ozawa, Tomoji Saitoh
Patented Case
View Patent ↗
Granted: Dec 10, 2002
Filed: Mar 31, 2000
Inventors
Osamu Ozawa
Tomoji Saitoh
Assignee (at issue)
The Yokohama Rubber 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.