Geometrical instruments – Straightedge type – Rules
Reexamination Certificate
2007-01-30
2007-01-30
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Straightedge type
Rules
C033S489000
Reexamination Certificate
active
11230126
ABSTRACT:
A measuring device having a longitudinally extending polymer portion and a longitudinally extending metal portion secured to the polymer portion. The polymer portion may be molded over one longitudinal edge of the metal portion to thereby permanently secure the portions together. The measuring device may have a longitudinal balance axis disposed between a free edge of the metal portion and a free edge of the polymer portion. The balance axis can be disposed so that when the measuring device is placed on a page the metal portion free edge will contact the page and the polymer portion free edge will be raised. Alternatively, the balance axis can be disposed so that when the measuring device is placed on a page the metal portion free edge and the polymer portion free edge are raised above the page. Pressure on the metal portion will cause the metal portion free edge to contact the page while pressure on the polymer portion free edge will raise the metal portion free edge further off the page.
REFERENCES:
patent: 118225 (1871-08-01), Feusier
patent: 518758 (1894-04-01), Jewell
patent: 700156 (1902-05-01), Simpson
patent: 1377671 (1921-05-01), Dieckmann
patent: 2522908 (1950-09-01), Szabo
patent: 3406456 (1968-10-01), Schleich
patent: 3896554 (1975-07-01), Pacion
patent: 4495709 (1985-01-01), Mainenti
patent: 6944963 (2005-09-01), Amaru
Farnworth Stuart D.
Lee Jonathan A.
Moses Erik J.
Sterling Daniel P.
Verdura Javier
Alix Yale & Ristas, LLP
Fulton Christopher W.
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