Granted Patent
Utility
US 6,101,943 · App. 09/023,814
Cylinder cleaning device and cleaning method
Inventors:
Akira Hara, Hiraku Onuma, Hideo Oyaizu, Ryozo Suzuki
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Feb 13, 1998
Inventors
Akira Hara
Hiraku Onuma
Hideo Oyaizu
Ryozo Suzuki
Assignee (at issue)
Baldwin-Japan 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.