Orthodontic bracket
Latest Minnesota Mining and Manufacturing Company Patents:
Description
FIG. 1 is a top, front and left side perspective view of an orthodontic bracket showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a left side elevational view thereof, the right side being a mirror image;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a botom plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D304077 | October 17, 1989 | Pospisil |
4193195 | March 18, 1980 | Merkel et al. |
4498867 | February 12, 1985 | Kesling |
4545760 | October 8, 1985 | Forster |
4661059 | April 28, 1987 | Kanno |
4819316 | April 11, 1989 | Rossini et al. |
4820151 | April 11, 1989 | Pospisil |
4838786 | June 13, 1989 | Reher et al. |
4927360 | May 22, 1990 | Pospisil |
- Pp. 3-7, Unitek/3M catalog, 1990. Drawings marked "A" and "B" of commercially available products. Ortho Organizers, Inc. advertisement "Journal of Clinical Orthodontics", Sep. 1989.
Patent History
Patent number: D331975
Type: Grant
Filed: Nov 2, 1990
Date of Patent: Dec 22, 1992
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventor: Jirina V. Pospisil (Monrovia, CA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorneys: Gary L. Griswold, Walter N. Kirn, James D. Christoff
Application Number: 7/608,651
Type: Grant
Filed: Nov 2, 1990
Date of Patent: Dec 22, 1992
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventor: Jirina V. Pospisil (Monrovia, CA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Attorneys: Gary L. Griswold, Walter N. Kirn, James D. Christoff
Application Number: 7/608,651
Classifications
Current U.S. Class:
Orthodontic Appliance (D24/180)