Rolled film backing paper with cinch tabs
US6033128A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C3/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is a photographic roll film which includes a photographic film strip and a light shielding paper secured to the photographic film strip. The backing paper has a leader which includes at least one cinch tab extending out of a plane of the light shielding paper. The present invention is a photographic roll film which includes a photographic film strip and a light shielding paper secured to the photographic film strip. The backing paper has a leader which includes a front edge, and two side edges. At least one cinch tab extends out of a plane of the backing paper, the cinch tab formed by the front edge, a side edge and a cut forming a cut angle of greater than 90.degree. with a long axis of the leader. The present invention is a photographic roll film which includes a photographic film strip and a light shielding paper secured to the photographic film strip. The backing paper has a leader having a front edge. At least one cinch tab extends out of a plane of the light shielding paper and is formed by a perforation and a fold line, the fold line closer to the front edge of the leader than the perforation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.