Patent · US Expired

Dental X-ray film back

US4831643A · kind A · utility

6Cited by
4References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 5, 1987
Grant dateMay 16, 1989
Priority date
Expiry dateJun 5, 2007

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03C3/003
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A dental X-ray film pack includes a dental X-ray film, an inner packaging member covering both sides of the dental X-ray film and an outer packaging member having a peeling piece at a part thereof and enclosing the dental X-ray film and inner packaging member. The dental X-ray film pack is provided with a means for uniting together a section of the inner packaging member, said section covering one side of the dental X-ray film on the side of the peeling piece, and the peeling piece.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.