Granted Patent
Utility
US 4,827,028 · App. 06/602,992
Anionic surfactants
Inventors:
Michael Scardera, Richard M. Mullins
Patented Case
View Patent ↗
Granted: May 2, 1989
Filed: Apr 23, 1984
Inventors
Michael Scardera
Richard M. Mullins
Assignee (at issue)
Olin 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.