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Patent
   D496995
Priority
Dec 06 2002
Filed
Dec 06 2002
Issued
Oct 05 2004
Expiry
Oct 05 2018
Inventors
Dorfman, W…
Assg.orig
Discus Den…
Assg.curr
Discus Den…
Entity
unknown
Referenced by
23
References
17
Maint.:
n/a
The ornamental design for a combined dental lip and tongue retractor, as shown and described.

FIG. 1 is a perspective view of a combined dental lip and tongue retractor, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side elevation view thereof, from another angle; and,

FIG. 6 is a side elevation view thereof; from another angle.
INVENTORS:

Dorfman, William

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
10016258, Mar 15 2013 Ultradent Products, INC Cheek and lip expansion device and method
10307049, Sep 26 2007 Ultradent Products, Inc. Methods, devices, systems, assemblies, and kits for tissue retraction in an oral cavity
10765493, Mar 15 2013 Ultradent Products, Inc. Cheek and lip expansion device and method
11020103, Mar 15 2013 Ultradent Products, Inc. Cheek retractor device and method
11877737, Jul 09 2018 Ultradent Products, Inc. Cheek and lip expansion device and method
7077652, Mar 17 2003 KerrHawe SA Cheek and lip retractor for dentistry
7300401, Apr 08 2004 Combined mouth expanding and saliva ejecting dental apparatus
9387054, Sep 26 2007 Ultradent Products, Inc. Methods, devices, systems, assemblies, and kits for tissue retraction in an oral cavity
9901332, Mar 15 2013 Ultradent Products, INC Cheek retractor device and method
D568994, Mar 31 2006 Cheek retractor
D617455, Jul 30 2008 GC Corporation Angulus oris dilating implement
D634841, Jun 24 2010 PAC-DENT, INC Lip retractor
D737964, Mar 14 2014 Ultradent Products, INC Cheek retractor device
D761958, Mar 14 2014 Ultradent Products, Inc. Cheek retractor device
D763444, Mar 14 2014 Ultradent Products, Inc. Cheek retractor device
D792588, Oct 30 2015 OSSIS CORPORATION Surgical shield
D792590, Jul 21 2015 Ultradent Products, Inc.; Ultradent Products, INC Cheek retractor device
D805644, Jul 02 2015 Bite block lip protector
D820445, Mar 14 2014 Ultradent Products, Inc. Cheek retractor device
D914214, Jun 03 2019 Ultradent Products, Inc. Dental retraction device
D964566, Jun 03 2019 Ultradent Products, Inc. Dental retraction device
ER3471,
ER6307,
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1170333,
1389436,
3241550,
3916880,
4002162, Apr 26 1976 Lip and cheek expander and tongue retractor with tortionally adjustable spring means
4019255, Oct 16 1975 Dental apparatus for cheek retraction and saliva collection
4179815, Dec 29 1977 TP ORTHODONTICS, INC Dental device
4200089, Apr 13 1978 Inoue Attachment Kabushiki Kaisha Mouth corner spreader
4259067, Oct 25 1977 Combined saliva ejector, tongue retractor and throat protector
4511329, Jan 26 1984 Moisture controlling lingual dental mirror
4671260, Jul 29 1985 Oral exerciser for face, chin and neck, and medical appliance
4889491, Mar 14 1988 Dental throat shield
5037298, Nov 25 1985 Apparatus and improved process for removing saliva while retracting cheeks and lips
5115799, Jan 15 1991 Occlusal lip and cheek retractor
5730597, Jun 05 1996 The United States of America as represented by the Secretary of the Navy Lip and cheek retractor
5873718, May 19 1998 Dental apparatus to remove saliva while retracting cheeks, lips and tongue
6102701, Jan 21 1999 Retractor apparatus
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 06 2002Discus Dental Impressions, Inc.(assignment on the face of the patent)
Feb 03 2003DORFMAN, WILLIAMDISCUS DENTAL IMPRESSIONS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0137500535 pdf
Jul 15 2003DORFMAN, WILLIAMDISCUS DENTAL IMPRESSIONS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0138220631 pdf
Mar 13 2006DISCUS DENTAL IMPRESSIONS, INC BANK OF AMERICA, N A , AS ADMINISTRATIVE AGENTNOTICE OF GRANT OF SECURITY INTEREST0174920740 pdf
Oct 23 2007DISCUS DENTAL IMPRESSIONS, INC Discus Dental, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0200800146 pdf
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