Granted Patent
Utility
US 4,518,628 · App. 06/580,280
Hermetic coating by heterogeneous nucleation thermochemical deposition
Inventors:
Dipak R. Biswas, Dilip K. Nath
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Feb 17, 1984
Inventors
Dipak R. Biswas
Dilip K. Nath
Assignee (at issue)
International Telephone and Telegraph 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.