Granted Patent
Utility
US 5,869,757 · App. 08/964,380
Apparatus for volume determination
Inventors:
Christer Lundren, Bengt I. Larsson
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Nov 6, 1997
Inventors
Christer Lundren
Bengt I. Larsson
Assignee (at issue)
Dresser Industries, 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.