Granted Patent
Utility
US 5,873,969 · App. 08/916,119
Method and apparatus for opening a zipper after it has been spot sealed
Inventors:
David William Keith, Thomas O'Connor
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Aug 22, 1997
Inventors
David William Keith
Thomas O'Connor
Assignee (at issue)
KCL 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.