Granted Patent
Utility
US 4,307,681 · App. 06/135,940
Apparatus for quality film formation
Inventors:
Curtis M. Lampkin, Guy A. Roderick, Peter Locke
Patented Case
View Patent ↗
Granted: Dec 29, 1981
Filed: Mar 31, 1980
Inventors
Curtis M. Lampkin
Guy A. Roderick
Peter Locke
Assignee (at issue)
Photon Power, Inc.
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.