Fastening means and process for its manufacture

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Multiple prong – e.g. – nailing plate – staple – etc.

Reexamination Certificate

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Details

C411S920000

Reexamination Certificate

active

07104741

ABSTRACT:
The present invention is directed to a fastener device that includes a base portion. At least one shank is coupled to the base portion. The at least one shank includes an end configured to be driven into a material. The at least one shank also includes a weakened shank region disposed between a first adjacent shank region and a second adjacent shank region. The weakened shank region includes a cross-section irregularly weakened with respect to the cross-sections of the first adjacent shank region and the second adjacent shank region.

REFERENCES:
patent: 1039103 (1912-09-01), Coupal
patent: 1417818 (1922-05-01), Frost
patent: 2153874 (1939-04-01), Posnack
patent: 2376936 (1945-05-01), Pfeffer
patent: 2383135 (1945-08-01), Lang
patent: 2641154 (1953-06-01), Heller
patent: 3170279 (1965-02-01), Dubini
patent: 3969975 (1976-07-01), Krol
patent: 5667527 (1997-09-01), Cook
patent: 207 636 (1959-07-01), None
patent: 207 636 (1960-02-01), None
patent: 19 30 914 (1970-12-01), None
patent: 1930914 (1970-12-01), None
patent: 707 271 (1931-07-01), None
patent: 1 407 510 (1975-09-01), None
patent: 07-238909 (1995-09-01), None
patent: 0723 8909 (1995-09-01), None

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