Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Reexamination Certificate
2008-01-08
2008-01-08
Gupta, Yogendra N. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
C425S363000, C425SDIG041
Reexamination Certificate
active
07316558
ABSTRACT:
Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses can include adjustable or zone-defined stretching regions.
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Amundson Jeffrey D.
Harvey Curtis A.
Jackson Jeffery N.
Merrill William W.
Ruff Andrew T.
3M Innovative Properties Company
Gupta Yogendra N.
Luk Emmanuel S.
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