Granted Patent
Utility
US 6,767,489 · App. 10/207,349
Method to mold round polyurethane rollers free of injection gates, parting lines and bubbles
Inventors:
Peter Wallace Bracken, Terry Cutshall, Wojciech Starski
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Jul 29, 2002
Inventors
Peter Wallace Bracken
Terry Cutshall
Wojciech Starski
Assignee (at issue)
Lexmark International, Inc.
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.