Granted Patent
Utility
US 4,539,049 · App. 06/478,043
Aluminum zirconium metallo-organic complex useful as coupling and hydrophobic agents
Inventor:
Lawrence B. Cohen
Patented Case
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Granted: Sep 3, 1985
Filed: Mar 22, 1983
Inventor
Lawrence B. Cohen
Assignee (at issue)
Jos. Cavedon Co., Inc.
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.