Granted Patent
Utility
US 5,136,975 · App. 07/542,243
Injector and method for delivering gaseous chemicals to a surface
Inventors:
Lawrence D. Bartholomew, Kenneth Provancha, George D. Kamian, Jay DeDontney, Gregory Max MCDANIEL
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Jun 21, 1990
Inventors
Lawrence D. Bartholomew
Kenneth Provancha
George D. Kamian
Jay DeDontney
Gregory Max MCDANIEL
Assignee (at issue)
Watkins-Johnson Company, 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.