Granted Patent
Utility
US 4,297,229 · App. 06/087,377
Particulate borate-soap compositions
Inventors:
Richard C. Speak, Donald J. Ferm
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Oct 23, 1979
Inventors
Richard C. Speak
Donald J. Ferm
Assignee (at issue)
United States Borax & Chemical 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.