The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1977
Filed:
Feb. 27, 1976
Applicant:
Inventor:
Maclay M Armstrong, Seattle, WA (US);
Assignee:
Northwest Orthodontics, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
32 1 / ;
Abstract
Danger of serious injury caused by sharp projections on a displaceable intraoral orthodontic appliance is avoided, or at least greatly decreased, by providing guards alongside such projections or by substituting guards for such projections. Such a guard can be a wire having an enlarged blunt end portion preferably in the form of a loop. The guard wire is mounted alongside the sharp projection of the orthodontic appliance, such as an inner bow anchor tip, and projects beyond such tip. In some instances, the sharp tip, such as a spur, can simply be replaced by a wire having a blunt tip.