Granted Patent
Utility
US 6,536,852 · App. 09/915,538
Resilient crawler and method of manufacture the same
Inventors:
Teruyuki Katayama, Yasuharu Fukushima, Kenichi Sakai
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Jul 27, 2001
Inventors
Teruyuki Katayama
Yasuharu Fukushima
Kenichi Sakai
Assignee (at issue)
The Ohtsu Tire & 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.