Granted Patent
Utility
US 6,580,449 · App. 09/618,316
Borehole inspection instrument having a low voltage, low power fiber optic light-head
Inventor:
Brad A. Meltzer
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jul 18, 2000
Inventor
Brad A. Meltzer
Assignee (at issue)
DHV 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.