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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7406811

Type

Invention Patent

Filing

08/16/1974

Publication

-

Progress at the INPI

  1. Filing08/16/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant12/16/80
  6. Expired11/17/92

The letters patent expired on 11/17/1992: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Parks-Sistemas de Alarme Ltda.

RS, BR

Inventors

E. B. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

11/04/1986

RPI 837

Concessão da patente

#16.1

12/16/1980

RPI 530

Carta-patente expirada

#21.1

11/17/1992

RPI 1146

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