Granted Patent
Utility
US 4,701,300 · App. 06/818,950
Polyamide ester photoresist formulations of enhanced sensitivity
Inventors:
Hans-Joachim Merrem, Rudolf Klug, Thomas Herold
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Jan 15, 1986
Inventors
Hans-Joachim Merrem
Rudolf Klug
Thomas Herold
Assignee (at issue)
Merck Patent GmbH
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.