Granted Patent
Utility
US 4,503,133 · App. 06/613,196
Leak resistant galvanic cell and process for the production thereof
Inventors:
Johannes A. van Lier, Hirotsugu Yasuda
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: May 23, 1984
Inventors
Johannes A. van Lier
Hirotsugu Yasuda
Assignee (at issue)
Union Carbide 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.