Protective sleeve for threaded connections for expandable liner hanger
US7918284B2 · kind B2 · utility
4Cited by
709References
65Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2003 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.