Granted Patent
Utility
US 6,695,044 · App. 09/937,666
Heat exchanger
Inventor:
Keith Thomas Symonds
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Sep 26, 2001
Inventor
Keith Thomas Symonds
Assignee (at issue)
Chart Heat Exchangers Limited
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.