Photographic film unit with taps on binding element
US4092167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1977 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Jan 3, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/46
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic film unit comprising superposed photosensitive and image-viewing elements including an area adapted to be exposed and processed by an aqueous alkaline processing composition spread in a layer between the two elements to facilitate formation of a transfer image. A trap for excess processing compositon is affixed to one end of the unit and the entire assemblage is secured together by a binding element which is secured around and to at least three edges of the film unit including the edge to which is affixed the trap. The binding element comprises foldable tabs on both sides of the trap area and, when the element is folded to provide binding functionality, the tabs are located slightly inboard of the trap whereby the thickness of the film unit in the area of a tab is increased by the thickness of the tab.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.