Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Reexamination Certificate
2007-11-06
2007-11-06
Mitchell, Katherine (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Pilot end having means enhancing fastening or installation
C411S387200, C411S387300, C411S387400, C411S387500, C411S387600, C411S387700, C411S387800, C411S389000, C411S107000
Reexamination Certificate
active
10764571
ABSTRACT:
A screw anchor includes a roughly cylindrical body (1) with a drilling portion (3) provided, at its free end, with drilling teeth (14-16), at the other end of the body, a bearing flange (5) and an external screw thread (7). The drilling portion (3) is configured as a portion of a drill bit.
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Lowe Hauptman Ham & Berner
Mitchell Katherine
Reese David C
Societe de Prospection et d'Inventions Techniques Spit
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