Method and apparatus for detecting overhead transparencies
US6462822B1 · kind B1 · utility
3Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/55
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a method and apparatus for detecting overhead transparencies (OHT), such as a dual OHT. Dual overhead transparencies, preferably, have a coating on one side that is compatible with ink jet-type printers and a coating on the other side that is compatible with laser jet-type printers. Such structures of this type, inform the user of the type of OHT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.