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Official data from INPI

UNIDADE DE REDE DE COMUTAÇÃO ELETRÔNICA.

ConcedidaInvention Patent

Application data

Number

PI8302218

Type

Invention Patent

Filing

04/29/1983

Publication

01/03/1984

Progress at the INPI

  1. Filing04/29/83
  2. Publication01/03/84
  3. Examination02/18/86
  4. Allowance10/13/87
  5. Grant05/31/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. A. (pessoa física)

DE

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Inventors

B. G. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

P 32 18 594.4 · 05/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/31/1988

RPI 919

Notificação para pagamento de retribuição

#13.1

02/09/1988

RPI 903

Deferimento

#9.1

10/13/1987

RPI 886

Exigência - art. 36 da LPI

#6.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

02/18/1986

RPI 800

Publicação do pedido de patente

#3.1

01/03/1984

RPI 689

Pedido de patente depositado

#2.1

06/14/1983

RPI 660

Carta-patente expirada

#21.1

Patente extinta em 29/04/98

07/01/2008

RPI 1956

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