Granted Patent
Utility
US 5,299,359 · App. 08/079,706
Method and system for measurement of internal tube dimensions within a wellbore
Inventors:
James D. Estes, Bruce E. Dennis
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Jun 18, 1993
Inventors
James D. Estes
Bruce E. Dennis
Assignee (at issue)
Computalog Research, 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.