Threaded – headed fastener – or washer making: process and apparat – Apparatus for making externally threaded fastener or... – Screw fastener making
Reexamination Certificate
2005-02-08
2005-02-08
Tolan, Ed (Department: 3725)
Threaded, headed fastener, or washer making: process and apparat
Apparatus for making externally threaded fastener or...
Screw fastener making
C470S148000, C470S205000
Reexamination Certificate
active
06852037
ABSTRACT:
A fastener is described having a head formed with a recess which accommodates a square head driver, symmetrical drivers, such as PHILLIPS™ style drivers, asymmetrical style cross head drivers, such as POZIDRIV® style drivers, and combination square and cross drivers without compromising performance of the drivers.
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Perman & Green LLP
Phillips Screw Company
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