Granted Patent
Utility
US 4,270,944 · App. 06/111,437
Method for producing calcium borates
Inventors:
Walter L. Eastes, Anna Tarantino
Patented Case
View Patent ↗
Granted: Jun 2, 1981
Filed: Jan 11, 1980
Inventors
Walter L. Eastes
Anna Tarantino
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.