Granted Patent
Utility
US 6,261,504 · App. 09/385,487
Form keys and method for thermoforming undercuts in foam parts
Inventors:
Philip S. Baker, Kenneth James Simmons, John Fuller, Steven Robert Hogarth
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Aug 30, 1999
Inventors
Philip S. Baker
Kenneth James Simmons
John Fuller
Steven Robert Hogarth
Assignee (at issue)
PACTIV LLC
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.