Granted Patent
Utility
US 6,318,980 · App. 09/466,662
Shape of suction hole and discharge hole of refrigerant compressor
Inventors:
Masayuki Kurihara, Iwao Uchikado, Yoshio Kimura, Tetsuya Noda, Kazuhiko Takai
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Dec 20, 1999
Inventors
Masayuki Kurihara
Iwao Uchikado
Yoshio Kimura
Tetsuya Noda
Kazuhiko Takai
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.