Granted Patent
Utility
US 4,039,702 · App. 05/540,410
Method for settling a glass suspension using preferential polar adsorbtion
Inventors:
Raymond DiBugnara, Richard Allison
Patented Case
View Patent ↗
Granted: Aug 2, 1977
Filed: Jan 13, 1975
Inventors
Raymond DiBugnara
Richard Allison
Assignee (at issue)
TRW Limited
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.