Granted Patent
Utility
US 5,727,007 · App. 08/140,201
Praseodymium doped waveguide lasers
Inventors:
Richard G. Smart, David C. Hanna, Anne Christine Tropper
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: May 9, 1994
Inventors
Richard G. Smart
David C. Hanna
Anne Christine Tropper
Assignee (at issue)
Amoco Corporation
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.