Granted Patent
Utility
US 4,911,809 · App. 07/228,897
Thin film deposition process
Inventors:
Christopher John Howard Wort, Lynn Y. Dorey
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Aug 5, 1988
Inventors
Christopher John Howard Wort
Lynn Y. Dorey
Assignee (at issue)
Plessey Overseas Limited
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.