Granted Patent
Utility
US 6,794,082 · App. 09/947,978
Alkaline battery
Inventors:
Katsumi Mori, Takumi Ohhara, Kenji Sato
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Sep 6, 2001
Inventors
Katsumi Mori
Takumi Ohhara
Kenji Sato
Assignee (at issue)
SONY GROUP 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.