Granted Patent
Utility
US 5,979,296 · App. 08/951,541
Reciprocating pump
Inventors:
Hideya Kikuchi, Etsuro Hozumi, Nobuo Aoki, Akinao Minegishi
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Oct 16, 1997
Inventors
Hideya Kikuchi
Etsuro 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.