Concrete bridge system and related methods
US9970166B2 · kind B2 · utility
8Cited by
97References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B7/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A concrete culvert assembly includes multiple culvert units forming multiple side-by-side channels. One or more of the side-by-side channels have an interior side that is substantially vertical and an exterior side that is outwardly angled from top to bottom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.