Granted Patent
Utility
US 6,023,979 · App. 08/897,629
Apparatus and methods for heat loss pressure measurement
Inventors:
Daniel G. Bills, Michael D. Borenstein
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Jul 21, 1997
Inventors
Daniel G. Bills
Michael D. Borenstein
Assignee (at issue)
Helix Technology 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.