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The ornamental design for a dental handpiece motor, substantially as shown and described. |
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FIG. 1 is a top plan view of our design for a dental handpiece motor;
FIG. 2 is a front view along line 2--2 of FIG. 1;
FIG. 3 is a rear view along line 3--3 of FIG. 1;
FIG. 4 is a side view along line 4--4 of FIG. 3, the opposite side being essentially the same in appearance.
Stankiewicz, Stanley L., Nilles, John D., Zubriski, David S.
| Patent | Priority | Assignee | Title |
| 7021817, | Apr 02 2003 | PREMARK FEG L L C | Mixing element with keyway attachment and mixer including mixing element |
| D343561, | Aug 26 1992 | Wahl Clipper Corporation | Constant speed drill |
| D376083, | May 12 1995 | Ingersoll-Rand Company | Screwdriver power tool |
| D380658, | Apr 17 1995 | Ingersoll-Rand Company | Screwdriver power tool |
| D439122, | Feb 17 2000 | Credo Technology Corporation | Spiral cutting tool |
| D645964, | Nov 25 2009 | Nakanishi Inc. | Motor for dental handpiece |
| Patent | Priority | Assignee | Title |
| 1878747, | |||
| 3309965, | |||
| 3900952, | |||
| 4007529, | Jul 01 1974 | Siemens Aktiengesellschaft | Motor-driven dental handpiece |
| 241500, | |||
| D254570, | Mar 23 1979 | Healthco, Inc. | Air turbine handpiece |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 23 1980 | American Hospital Supply Corporation | (assignment on the face of the patent) | / | |||
| Aug 31 1982 | AMERICAN HOSPITAL SUPPLY CORPORATION A CORP OF ILL | SYBRON CORPORATION, A CORP OF N Y | ASSIGNMENT OF ASSIGNORS INTEREST | 004051 | /0902 | |
| Jul 31 1986 | SYBRON CORPORATION, A CORP OF NY | Nalge Company | ASSIGNMENT OF ASSIGNORS INTEREST | 004628 | /0848 | |
| Dec 16 1987 | NALGE COMPANY A DE CORP | MIDWEST DENTAL CORPORATION, A DE CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004818 | /0867 | |
| Dec 18 1987 | MIDWEST DENTAL CORPORATION | LAKE SHORE NATIONAL BANK, 605 NORTH MICHIGAN AVENUE, CHICAGO, ILLINOIS 60611 | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 004816 | /0449 | |
| Aug 29 1990 | LAKE SHORE NATIONAL BANK | Midwest Dental Products Corporation | RELEASED BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 005458 | /0604 | |
| Sep 20 1994 | Midwest Dental Products Corporation | Dentsply Research & Development Corp | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007152 | /0151 |
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