Granted Patent
Utility
US 4,579,839 · App. 06/582,934
Rehydration bondable alumina
Inventor:
Alan Pearson
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Feb 23, 1984
Inventor
Alan Pearson
Assignee (at issue)
Aluminum Company of America
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.