Tear-resistant dental dams
US9717567B1 · kind B1 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2015 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jun 29, 2035 |
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 thermoplastic elastomeric sheet and a second thermoplastic elastomeric sheet disposed on the first thermoplastic elastomeric sheet. The first and second thermoplastic elastomeric sheets have a grid pattern of weld joint regions configured to couple together the first and second thermoplastic elastomeric sheets. The grid pattern of weld joint regions define a plurality of unwelded regions of the first and second thermoplastic elastomeric sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.