Granted Patent
Utility
US 4,508,688 · App. 06/499,714
Method of regenerating acetate in a metal removal process
Inventors:
Christopher Handy, D'Arcy H. Lorimer
Patented Case
View Patent ↗
Granted: Apr 2, 1985
Filed: May 31, 1983
Inventors
Christopher Handy
D'Arcy H. Lorimer
Assignee (at issue)
AT&T Technologies Incorporated
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.