Granted Patent
Utility
US 5,124,445 · App. 07/701,756
Alkylaryl hydrophobically modified cellulose ethers
Inventors:
Ernst K. Just, Thomas G. Majewicz, Arjun C. Sau
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: May 17, 1991
Inventors
Ernst K. Just
Thomas G. Majewicz
Arjun C. Sau
Assignee (at issue)
Aqualon Company
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.