Patent · US Expired

Books and assemblies for books

US5240340A · kind A · utility

35Cited by
10References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 22, 1991
Grant dateAug 31, 1993
Priority date
Expiry dateNov 22, 2011

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB42D3/12
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

An improved leaf assembly for incorporation into a book, or formed as part of a cover of a book, to allow selective placement of a page adjacent or atop a selected leaf of the book.

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