Screw for fixing wooden laths on a roof substructure or a wall foundation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 4, 2001
Grant Date -
N/A
app pub date -
Mar 21, 2000
filing date -
Sep 22, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a screw (1) for fastening wooden laths (10) to a roof substructure provided with wooden beams (9) among other alternatives, one threaded portion (2, 3) each adjoining the head (5) of the screw and adjoining a penetrating or boring point (6) is provided, these two threaded portions (2, 3) having the same major diameter. A thread-free shank portion (4) is provided between the two threaded portions (2, 3).
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Cited Art Landscape
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