Granted Patent
Utility
US 4,547,261 · App. 06/655,692
Anisotropic etching of aluminum
Inventors:
Jer-Shen Maa, Bernard Halon
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Sep 28, 1984
Inventors
Jer-Shen Maa
Bernard Halon
Assignee (at issue)
RCA Corporation
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.