Granted Patent
Utility
US 4,953,496 · App. 07/381,103
High pressure water jet cleaner and coating applicator
Inventors:
Sidney A. Taylor, Stanely J. Rogala
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jul 17, 1989
Inventors
Sidney A. Taylor
Stanely J. Rogala
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.