Sheet metal nails with coated heads
US5125779A · kind A · utility
9Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | May 17, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/923
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Sheet metal fasteners and/or washers of the type which are used to fasten membranes to cementitious materials of a type such as utilized in roofing wherein the fasteners are treated to provide a corrosion resistant coating to the washers and those portions of the fasteners not inserted into the cementitious material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.