Cryogenic freezer
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United States of America Patent
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-
May 15, 2001
Grant Date -
N/A
app pub date -
Sep 29, 1999
filing date -
Sep 29, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rectangular double walled cryogenic freezer has a vacuum space filled with layers of a reflective material. The support material is an open-celled three dimensional geometric grid that provides structural support for the freezer walls to prevent wall deformation when a vacuum is drawn.
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