Impression tray for dental purposes
US4016650A · kind A · utility
47Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1975 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Oct 31, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/0006
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In order, when taking impressions of the upper jaw and lower jaw for dental purposes, to be able to introduce the upper-jaw tray and lower-jaw tray individually into and to remove them individually from the mouth of the patient, one of the trays is formed on the bite surface with depressions against which openings in the second tray come to rest, so that the impression compound is able to penetrate through the openings into the depressions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.