Granted Patent
Utility
US 6,428,651 · App. 09/560,407
Method and apparatus for applying adhesives to the edges of a slit tube
Inventors:
Charles M. Princell, Bill Alvey, Steve Fox, Robert L. Campbell
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Apr 27, 2000
Inventors
Charles M. Princell
Bill Alvey
Steve Fox
Robert L. Campbell
Assignee (at issue)
Plastics Technology 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.