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Official data from INPI

INSTALAÇÃO DE COMUTAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8206331

Type

Invention Patent

Filing

10/29/1982

Publication

09/20/1983

Progress at the INPI

  1. Filing10/29/82
  2. Publication09/20/83
  3. Examination08/27/85
  4. Allowance05/05/87
  5. Grant11/24/87
  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: 11/24/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. N. (pessoa física)

CH

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Inventors

N. [. (pessoa física)

Technical data

IPC Classification

Priority claims

AT

A 4711/81 · 11/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/24/1987

RPI 892

Notificação para pagamento de retribuição

#13.1

09/22/1987

RPI 883

Republicação - classificação IPC

#15.11

06/09/1987

RPI 868

Deferimento

#9.1

05/05/1987

RPI 863

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

08/27/1985

RPI 775

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/21/1982

RPI 635

Carta-patente expirada

#21.1

Patente extinta em 29/10/97

07/01/2008

RPI 1956

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