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Official data from INPI

TECIDO DE FORMAÇÃO DO TIPO DE DUPLA CAMADA

ConcedidaInvention Patent

Application data

Number

PI8203752

Type

Invention Patent

Filing

06/23/1982

Publication

06/21/1983

Progress at the INPI

  1. Filing06/23/82
  2. Publication06/21/83
  3. Examination06/25/85
  4. Allowance07/19/88
  5. Grant12/27/88
  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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nordiskafilt Ab

SE

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Inventors

L. O. (pessoa física)

SE

Technical data

IPC Classification

Priority claims

SE

8103920-8 · 06/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/19/1988

RPI 926

Exigência - art. 36 da LPI

#6.1

02/23/1988

RPI 905

Republicação - classificação IPC

#15.11

05/05/1987

RPI 863

Exigência - art. 36 da LPI

#6.1

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

06/25/1985

RPI 766

Publicação do pedido de patente

#3.1

06/21/1983

RPI 661

Pedido de patente depositado

#2.1

08/10/1982

RPI 616

Carta-patente expirada

#21.1

Patente extinta em 23/06/97

07/01/2008

RPI 1956

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