Granted Patent
Utility
US 5,962,040 · App. 08/469,119
Apparatus for making a zipper for a reclosable thermoplastic bag
Inventors:
Brian C. Dais, Jose Porchia, Raymond R. Rydman
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Jun 6, 1995
Inventors
Brian C. Dais
Jose Porchia
Raymond R. Rydman
Assignee (at issue)
Dowbrands L.P.
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.