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Official data from INPI

SEM TITULO

Em AnáliseInvention Patent

Application data

Number

PI7404293

Type

Invention Patent

Filing

05/24/1974

Publication

-

Progress at the INPI

  1. Filing05/24/74
  2. Publication
  3. Examination
  4. Allowance
  5. Grant11/30/82
  6. Expired08/25/92

The letters patent expired on 08/25/1992: 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: 10/06/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Laurente - Equipamentos para Processamento de Dados Ltda.

SP, BR

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

10/06/1987

RPI 885

201

06/26/1984

RPI 714

Pedido de licença compulsória

#20.1

05/02/1984

RPI 706

Pedido de licença voluntária

#17.1

01/10/1984

RPI 690

Concessão da patente

#16.1

11/30/1982

RPI 632

Notificação para pagamento de retribuição

#13.1

10/13/1982

RPI 625

110

08/10/1982

RPI 616

Recurso

#12.1

12/22/1981

RPI 583

Carta-patente expirada

#21.1

08/25/1992

RPI 1134

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