Granted Patent
Utility
US 4,253,921 · App. 06/128,817
Electrochemical synthesis of butane-1,4-diol
Inventors:
Maynard M. Baldwin, Robert E. Wyant, Luther E. Vaaler
Patented Case
View Patent ↗
Granted: Mar 3, 1981
Filed: Mar 10, 1980
Inventors
Maynard M. Baldwin
Robert E. Wyant
Luther E. Vaaler
Assignee (at issue)
Battelle Development 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.