Patent
   D318916
Priority
Feb 15 1989
Filed
Feb 15 1989
Issued
Aug 06 1991
Expiry
Aug 06 2005
Assg.orig
Entity
unknown
1
5
n/a
The ornamental design for a control unit for dental electro surgery, as shown and described.

FIG. 1 is a perspective view of a control unit for dental electro surgery showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof.

The broken line drawing is for illustrative purposes only and forms no part of the claimed design.

Miller, Alan

Patent Priority Assignee Title
D950081, Apr 26 2019 Device casing with color coded power setting buttons and two probe holding connectors
Patent Priority Assignee Title
3703037,
4243388, Apr 20 1978 Kabushiki-Kaisha Dentronics Dental hand engine
4770632, Dec 30 1985 NATIONAL PATENT DEVELOPMENT CORP NPDC Delivery system for dental treatment solution
224709,
D282485, Apr 27 1983 Electro Medical Systems, S.A. Control cabinet of a dental prophylaxis unit
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 15 1989Coltene/Whaledent, Inc.(assignment on the face of the patent)
Jun 01 1990IPCO CorporationG H ACQUISITION CORP , A CORP OF DEASSIGNMENT OF ASSIGNORS INTEREST 0056040279 pdf
Jun 01 1990G H ACQUISITION CORP WHALEDENT INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS JUNE 1, 1990 - DE0056040299 pdf
Oct 02 1990WHALENDENT INC COLTENE WHALEDENT INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS JUNE 1, 1990 - DE0056040290 pdf
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