Granted Patent
Utility
US 4,455,835 · App. 06/458,675
Thermal energy storage and recovery apparatus and method for a fossil fuel-fired vapor generator
Inventor:
Oliver W. Durrant
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Jan 17, 1983
Inventor
Oliver W. Durrant
Assignee (at issue)
The Babcock & Wilcox Company
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.