Granted Patent
Utility
US 6,092,406 · App. 09/301,429
Pipeline mandrel positioning control system
Inventors:
Shankar T. Rajagopalan, Sridhar Madala
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Apr 28, 1999
Inventors
Shankar T. Rajagopalan
Sridhar Madala
Assignee (at issue)
CRC-EVANS PIPELINE INTERNATIONAL, 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.