Court marking switching system
US9962598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2016 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | May 12, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63C2203/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Embodiments of the present invention relate to a court marking switching system, including: singles and doubles markings, wherein the singles and doubles markings present white color when they are not lit up, and present a same color with surrounding floor when they are lit up; a switching element which lights up the singles markings and turns off the doubles markings when receiving a doubles command and lights up the doubles markings and turns off the singles markings when receiving a singles command. During the doubles match, only the singles markings are lit up, the lit singles markings present a same color with that of the surrounding floor and are not easy to be observed, while the doubles markings which are not lit up present a white color, such that only the white doubles markings may be observed by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.