Patent · US Expired

Method and device for registering the use of copying machines

US4533237A · kind A · utility

8Cited by
15References
7Claims
0Family size

Inventors

Key dates

Filing dateJul 9, 1984
Grant dateAug 6, 1985
Priority date
Expiry dateJul 9, 2004

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG07F17/26
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

For registering the use of copying machines, the copying operation is initially enabled by introduction of user representative data. To provide evidence with respect to the identity of a person who made one or more copies of an original a separate record of the original is generated, and an information identifying the user is included on the record. The original may only be withdrawn from the copying machine after this record has been generated.

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