Granted Patent
Utility
US 5,253,481 · App. 07/935,972
Control unit for activating compressor
Inventors:
Nobukazu Takagi, Osamu Takahashi, Akihito Uetake, Osamu Shinkawa
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Aug 27, 1992
Inventors
Nobukazu Takagi
Osamu Takahashi
Akihito Uetake
Osamu Shinkawa
Assignees (at issue)
Zexel GmbH
SEIKO EPSON 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.