Patent
   D305935
Priority
Apr 06 1987
Filed
Oct 06 1987
Issued
Feb 06 1990
Expiry
Feb 06 2004
Assg.orig
Entity
unknown
20
8
n/a
The ornamental design for a dental handpiece.

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 unornamented;

Straihammer, Reinhard, Schuss, Werner

Patent Priority Assignee Title
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D588698, Feb 21 2007 BROWNING, JERRY; MURPHY, DAVID; CROOKS, THOMAS Disposable dental handpiece
D592308, Dec 22 2006 BROWNING, JERRY; MURPHY, DAVID; CROOKS, THOMAS Disposable dental handpiece
D658292, Apr 28 2011 Nakanishi Inc. Dental handpiece
D658293, Apr 28 2011 Nakanishi Inc. Dental handpiece
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D708330, Mar 07 2013 DIGITALPREP TECHNOLOGIES, INC Dental handpiece
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D857196, Jan 16 2019 Rodan & Fields, LLC Handheld skin treatment device
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
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D276936, May 24 1982 SCHERER LABORATORIES, INC Personal dental care appliance
GB797533,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 06 1987Siemens Aktiengesellschaft(assignment on the face of the patent)
Nov 13 1987STRAIHAMMER, REINHARDSIEMENS AKTIENGESELLSCHAFT, BERLIN AND MUNICH, GERMANY A CORP OFASSIGNMENT OF ASSIGNORS INTEREST 0047990866 pdf
Nov 16 1987SCHUSS, WERNERSIEMENS AKTIENGESELLSCHAFT, BERLIN AND MUNICH, GERMANY A CORP OFASSIGNMENT OF ASSIGNORS INTEREST 0047990866 pdf
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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