Patent
   D355487
Priority
Oct 28 1992
Filed
Apr 28 1993
Issued
Feb 14 1995
Expiry
Feb 14 2009
Assg.orig
Entity
unknown
13
5
n/a
The ornamental design for a drill extension for use in oral implantology, as shown and described.

FIG. 1 is a top, side perspective view of a drill extension for use in oral implantology;

FIG. 2 is a top, opposite side perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a bottom plan view thereof.

Broberg, Leif

Patent Priority Assignee Title
5961330, Apr 09 1998 Zimmer Dental, Inc Vial for dental implant delivery system
D399562, Dec 17 1996 Denticator International, Inc. Snap on screw
D399563, Dec 17 1996 Denticator International, Inc. Snap on latch
D399956, May 30 1997 Denticator International, Inc. Snap on latch
D523145, Oct 13 2004 ASTRA TECH AB Impression coping for dental implant prosthetic
D618348, Mar 23 2007 WOLD, JOSEPH E Spinal stabilization device
D618349, Mar 23 2007 WOLD, JOSEPH E Spinal stabilization device
D644327, Sep 02 2010 Trephine drill
D659730, Jul 19 2011 ROCKY MOUNTAIN TWIST CORPORATION Bit holder
D679811, Apr 28 2010 Blue Belt Technologies, LLC Tool shield
D694406, Apr 28 2010 Blue Belt Technologies, LLC Tool shield
D728101, Mar 24 2011 Dental drill extender
D898915, Jun 11 2018 Five levels drill for dental implant
Patent Priority Assignee Title
3449830,
4588381, Jan 14 1983 Universal pin for oral implantoprosthesis
4820156, Dec 29 1986 Ross Systems Corporation Trephine dental drill
D268615, Apr 24 1980 Combined dental pin and chuck
D285343, Jul 29 1983 Ulla Anette, Duarte-Martins Boneplug drill bit
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Apr 28 1993Aktiebolaget Astra(assignment on the face of the patent)
Jun 18 1993BROBERG, LEIFAktiebolaget AstraASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0065990472 pdf
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