Instant processing sleeve for borderless prints
US4289840A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1980 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Apr 14, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic processing sleeve is provided for receiving and processing a dye donating instant film sheet to produce borderless photographic prints. The sleeve is constructed of first and second sheets coupled together to form a pocket therebetween for receiving the film sheet. One of the sheets includes a central section which carries materials for immobilizing the dyes donated by the film sheet to form a visible picture in the central section. A stripping sheet forms an outermost surface of one face of the sleeve and releasably couples the central section of the first sheet to the remainder of the sleeve so the stripping sheet and the picture in the central section can be stripped away from the remainder of the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.