Granted Patent
Utility
US 6,286,334 · App. 09/551,549
Refrigerant compressor and refrigerating apparatus
Inventors:
Kenji Tojo, Hideyuki Ueda, Yoshikatsu Tomita, Takao Mizuno
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Apr 18, 2000
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.