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The ornamental design for a surgical retractor, as shown and described. |
FIG. 1 is a front elevational view of a surgical retractor showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and
FIG. 7 is a front elevational view thereof, in alternate position with the barbs extended.
Carignan, Roger G., Martinez, David M., Pratt, Clyde R., Schiffman, Michael L.
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D322851, | Dec 20 1988 | Technology Holding Company II | Adapter for surgical retractors |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 12 1983 | PRATT, CLYDE R | TECHMEDICA, INC , A CA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004183 | /0705 | |
Sep 12 1983 | CARIGNAN, ROGER G | TECHMEDICA, INC , A CA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004183 | /0705 | |
Sep 12 1983 | MARTINEZ, DAVID M | TECHMEDICA, INC , A CA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004183 | /0705 | |
Sep 12 1983 | SCHIFFMAN, MICHAEL L | TECHMEDICA, INC , A CA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004183 | /0705 | |
Oct 11 1983 | Techmedica, Inc. | (assignment on the face of the patent) | / | |||
Jan 01 1991 | TECHMEDICA, INC A CORP OF CALIFORNIA | SULZER BROS INC | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 005700 | /0847 | |
Sep 01 1994 | TECHMEDICA, INC | SULZERMEDICA USA, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007408 | /0450 | |
Mar 13 1995 | SULZER, INC | TECHMEDICA, INC | RELEASE OF PATENT COLLATERAL | 007381 | /0177 | |
May 22 2002 | SULZER MEDICA USA INC | CENTERPULSE USA INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 013542 | /0917 |
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