Granted Patent
Utility
US 4,236,994 · App. 05/934,019
Apparatus for depositing materials on substrates
Inventor:
Ronald A. Dugdale
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Aug 16, 1978
Inventor
Ronald A. Dugdale
Assignee (at issue)
United Kingdom Atomic Energy Authority
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.