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Patent
   D741991
Priority
Nov 13 2013
Filed
Nov 13 2013
Issued
Oct 27 2015
Expiry
Oct 27 2029
Inventors
Nordahl, M…
Assg.orig
COLTENE WH…
Assg.curr
Coltene/Wh…
Entity
unknown
Referenced by
2
References
10
Maint.:
n/a
The ornamental design for dental dam with holder, as shown and described.

FIG. 1 is a side elevation view of a dental dam with holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a perspective view thereof.
INVENTORS:

Nordahl, Michael

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
ER1332,
ER5813,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1292133,
4204329, Oct 16 1978 Henry, Kahn Rubber dam holder for use during endodontic therapy
4261697, Feb 15 1980 Evacuating rubber dam frame
4583946, Apr 25 1977 Holder for rubber dental dam
4695253, Mar 08 1985 Oral evacuation device and method
6093022, Nov 10 1998 Dental dam with integral clamp
682308,
20020174749,
D297390, Feb 07 1986 Spatula attachment for electric knife drive unit
D413974, Oct 03 1997 Dental dam
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 11 2013NORDAHL, MICHAELCOLTENE WHALEDENT, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0315900398 pdf
Nov 13 2013Coltene/Whaledent, Inc.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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