Granted Patent
Utility
US 4,833,047 · App. 07/112,304
Electrolyte feeder for battery
Inventors:
Toshihiro Isoi, Masakazu Sato, Shuji Takahashi
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Oct 26, 1987
Inventors
Toshihiro Isoi
Masakazu Sato
Shuji Takahashi
Assignees (at issue)
Yuasa Battery Co., Ltd.
Honda Giken Koygo Kabushiki Kaisha
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.