Granted Patent
Utility
US 6,062,830 · App. 08/920,901
Diaphragm type damper
Inventors:
Hideya Kikuchi, Etsurou Hozumi, Nobuo Aoki, Akinao Minegishi
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Aug 29, 1997
Inventors
Hideya Kikuchi
Etsurou Hozumi
Nobuo Aoki
Akinao Minegishi
Assignee (at issue)
Zexel GmbH
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.