Granted Patent
Utility
US 6,312,138 · App. 09/419,044
Lighted magnetic retrieval tool
Inventors:
Edward S. Coleman, Wen-Ruey Chang
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Oct 15, 1999
Inventors
Edward S. Coleman
Wen-Ruey Chang
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.