Retractor
Dorfman May 3, 2
U.S. patent number D504,721 [Application Number D/202,449] was granted by the patent office on 2005-05-03 for retractor. This patent grant is currently assigned to Discus Dental Impressions, Inc.. Invention is credited to William Dorfman.
| United States Patent | D504,721 |
| Dorfman | May 3, 2005 |
Retractor
Claims
The ornamental design for a retractor, as shown and described.
| Inventors: | Dorfman; William (Granada Hills, CA) |
|---|---|
| Assignee: | Discus Dental Impressions, Inc.
(Culver City, CA) |
| Family ID: | 32926203 |
| Appl. No.: | D/202,449 |
| Filed: | March 30, 2004 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | Issue Date | ||
|---|---|---|---|---|---|
| 172164 | Dec 6, 2002 | ||||
| Current U.S. Class: | D24/135; D24/152 |
| Current CPC Class: | A61B1/24 20130101; A61C5/90 20170201 |
| Current International Class: | A61B1/32 20060101; 2402 |
| Field of Search: | ;D24/135,152 ;600/242,237,235,208,210,233,238 ;433/140 |
References Cited [Referenced By]
U.S. Patent Documents
| 1170333 | February 1916 | Reyer |
| 1389436 | August 1921 | Cameron |
| 3241550 | March 1966 | Gelarie |
| 3916880 | November 1975 | Schroer |
| 4002162 | January 1977 | Weisser |
| 4019255 | April 1977 | Cohen et al. |
| 4179815 | December 1979 | Hoffman |
| 4200089 | April 1980 | Inoue |
| 4259067 | March 1981 | Nelson |
| 4511329 | April 1985 | Diamond |
| 4592344 | June 1986 | Scheer |
| 4671260 | June 1987 | Buckner |
| 4889491 | December 1989 | Krygier et al. |
| 5037298 | August 1991 | Hickman |
| 5115799 | May 1992 | McGann |
| 5730597 | March 1998 | Luttrel |
| 5873718 | February 1999 | Sullivan |
| 6102701 | August 2000 | Engeron |
| 2002/0022211 | February 2002 | Horiguchi |
Attorney, Agent or Firm: Christie, Parker & Hale, LLP
Description
FIG. 1 is a perspective view of a dental lip retractor;
FIG. 2 is a bottom plan view of the retractor of FIG. 1;
FIG. 3 is a side elevation view of the retractor of FIG. 1;
FIG. 4 is a top plan view of the retractor of FIG. 1;
FIG. 5 is a side elevation view of the retractor of FIG. 1 from another angle; and,
FIG. 6 is a side elevation view of the retractor of FIG. 1 from another angle.
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