Granted Patent
Utility
US 4,639,290 · App. 06/806,874
Methods for selectively removing adhesives from polyimide substrates
Inventors:
Richard N. Leyden, Robert Lawrence
Patented Case
View Patent ↗
Granted: Jan 27, 1987
Filed: Dec 9, 1985
Inventors
Richard N. Leyden
Robert Lawrence
Assignee (at issue)
Hughes Aircraft 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.