Method and apparatus for the coating of substrates for pharmaceutical use
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United States of America Patent
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Dec 26, 2006
Issued Date -
N/A
app pub date -
Sep 26, 2001
filing date -
Nov 13, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of coating a pharmaceutical substrate includes the steps of applying an active coating material to a surface of the substrate to form an active coating layer and applying a cover coating material onto the active coating layer to form a cover coating layer. The active coating layer is substantially completely covered by the cover coating layer.
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