Granted Patent
Utility
US 5,965,640 · App. 08/869,776
Acrylic rubber composition
Inventors:
Nobutoshi Kobayashi, Minoru Tanaka
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Jun 5, 1997
Inventors
Nobutoshi Kobayashi
Minoru Tanaka
Assignee (at issue)
JSR CORPORATION
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.