Granted Patent
Utility
US 6,536,819 · App. 09/795,695
Tongs with clamp and stop means
Inventors:
Nigel Wang, Alison A. Roach
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Feb 28, 2001
Inventors
Nigel Wang
Alison A. Roach
Assignee (at issue)
Columbia Insurance Company
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.