Door knob screw alignment sleeve
US10907672B1 · kind B1 · utility
1Cited by
25References
12Claims
0Family size
Inventor
Key dates
| Filing date | Feb 28, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Feb 28, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/0258
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A flexible compressible screw guide sleeve that facilitates door knob installations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.