Granted Patent
Utility
US 6,237,750 · App. 09/147,145
Transport band for conveying along a spiral path
Inventors:
Poul Erik Damkjaer, Jack R. Raum, Andrew Clyde Smith
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Oct 16, 1998
Inventors
Poul Erik Damkjaer
Jack R. Raum
Andrew Clyde Smith
Assignees (at issue)
Uni-Chains International
Ashworth Bros., 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.