Granted Patent
Utility
US 4,729,883 · App. 06/903,963
Acid gas removal process
Inventors:
Chi Lam, Terence J. Ritter, Peter S. Small
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Sep 5, 1986
Inventors
Chi Lam
Terence J. Ritter
Peter S. Small
Assignee (at issue)
British Gas
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.