Granted Patent
Utility
US 6,783,131 · App. 10/355,526
Neck seal
Inventors:
Armando S. Martins, Peter N. Osgood, Earl Winslow
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jan 31, 2003
Inventors
Armando S. Martins
Peter N. Osgood
Earl Winslow
Assignee (at issue)
Morgan Construction 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.