Tear-resistant dental dams
US9060830B2 · kind B2 · utility
2Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Mar 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/82
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tear-resistant dental dam is provided. The tear-resistant dental dam includes a first elastomeric sheet and a second elastomeric sheet disposed on the first elastomeric sheet. The first and second elastomeric sheets have a grid pattern of weld joint regions configured to couple together the first and second elastomeric sheets. The grid pattern of weld joint regions define a plurality of unwelded regions of the first and second elastomeric sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.