Window frame and method of producing it
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 10, 2002
Grant Date -
N/A
app pub date -
Feb 11, 2000
filing date -
Feb 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A window frame is formed of a plurality of plastic section pieces welded together at their ends. The ends of the plastic section pieces also have surfaces which abut one another. The plastic section pieces are not welded at the abutting surfaces. The unwelded abutting surfaces can therefore be used to define the length of the window frame.
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