Granted Patent
Utility
US 6,055,827 · App. 09/373,598
Refrigerant compressor and refrigerating apparatus
Inventors:
Kenji Tojo, Hideyuki Ueda, Yoshikatsu Tomita, Takao Mizuno
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Aug 13, 1999
Inventors
Kenji Tojo
Hideyuki Ueda
Yoshikatsu Tomita
Takao Mizuno
Assignee (at issue)
HITACHI, 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.