Portable and collapsible apparatus for holding fiducial markers
US11278367B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | May 21, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/303
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A portable and collapsible apparatus for holding fiducial markers has a first section that includes a frame, an opposite second side, a first panel attached to the first frame and fiducial markers attached to the first panel. The apparatus includes a second section pivotably attached to the first section and a second frame, an opposite second side, a second panel member attached to the second frame and fiducial markers attached to the second panel. The apparatus is configurable to a closed state by pivoting the first section and second section toward each other where the rear sides of the first frame and second frame contact each other. The apparatus is configurable to an opened state by pivoting the first section and second section away from each other. In the opened state, the first section and second section are vertically oriented with respect to a surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.