Granted Patent
Utility
US 4,980,249 · App. 07/465,291
Electrolyte feeder for battery
Inventors:
Toshihiro Isoi, Masakazu Sato, Hiroyuki Suzuki, Shuji Takahashi
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Jan 16, 1990
Inventors
Toshihiro Isoi
Masakazu Sato
Hiroyuki Suzuki
Shuji Takahashi
Assignees (at issue)
Yuasa Battery Co., Ltd.
HONDA MOTOR CO., 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.