Granted Patent
Utility
US 5,913,664 · App. 09/116,662
Safety relief valve assembly for a fluid displacement apparatus
Inventors:
Hidehiko Shimizu, Masashi Yaguchi
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Jul 17, 1998
Inventors
Hidehiko Shimizu
Masashi Yaguchi
Assignee (at issue)
SANDEN 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.