Granted Patent
Utility
US 4,309,229 · App. 05/751,502
Method of generating water vapor free gas
Inventor:
Brian K. Hamilton
Patented Case
View Patent ↗
Granted: Jan 5, 1982
Filed: Dec 17, 1976
Inventor
Brian K. Hamilton
Assignee (at issue)
Allied Chemical 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.