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Patent
D413974
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Priority
Oct 03 1997
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Filed
Oct 03 1997
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Issued
Sep 14 1999
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Expiry
Sep 14 2013
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Assg.orig
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Entity
unknown
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4
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5
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n/a
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The ornamental design for a dental dam, as shown and described.
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FIG. 1 is a perspective view of a dental dam, showing my new design;
FIG. 2 is a front elevation view of the same; and,
FIG. 3 is a rear elevation view of the same.
Ramirez-Delgado, Roberto
Patent |
Priority |
Assignee |
Title |
4721465, |
Mar 17 1987 |
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Dental dam with integral deformable frame |
5390681, |
Oct 29 1993 |
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Prophylactic device for oral sex |
5582187, |
Apr 10 1995 |
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Protective mask |
5785052, |
Jan 27 1995 |
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Versatile disposable film protective mask |
JP406178791, |
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