Patent
   D310715
Priority
Apr 06 1987
Filed
Nov 22 1989
Issued
Sep 18 1990
Expiry
Sep 18 2004
Assg.orig
Entity
unknown
2
8
n/a
The ornamental design for a dental handpiece, as shown and described.

FIG. 1 is a bottom plan view of a dental handpiece 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 top plan view thereof; and

FIG. 5 is a front end elevational view thereof, the rear being plain and unornamental.

Straihammer, Reinhard, Schuss, Werner

Patent Priority Assignee Title
D405232, Oct 22 1997 Kupa, Inc. Manicurist tool handle
D581530, Jan 09 2007 CHECKPOINT SURGICAL, INC Surgical tissue stimulator/locator
Patent Priority Assignee Title
3014278,
4080737, Nov 03 1975 Siemens Aktiengesellschaft Coupling device for dental handpieces
4619614, Sep 01 1983 NAKANISHI DENTAL MFG CO , LTD 340 KAMIHINATA, KANUMA CITY, TOCHIGI PREFECTURE, JAPAN Rotational coupling device for a dental handpiece having a built-in battery
4661060, Feb 28 1985 KALTENBACH & VOIGT GMBH & CO Dental handpiece
D255929, Feb 15 1978 Improved dental handpiece
D264876, Jan 17 1980 Sultan Dental Products Ltd. Dental handpiece
D276936, May 24 1982 SCHERER LABORATORIES, INC Personal dental care appliance
GB797533,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 22 1989Siemens Aktiengesellschaft(assignment on the face of the patent)
Mar 12 1998Siemens AktiengesellschaftSIRONA DENTAL SYSTEMS GMBH & CO KGASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0091230177 pdf
Mar 30 1998SIRONA DENTAL SYSTEMS GMBH & CO KGSirona Dental Systems GmbHCONTRACT OF PURCHASE & SALE0121100001 pdf
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