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Official data from INPI

MEMBRANA DE IMPERMEABILIZAÇÃO, PROCESSO DE FABRICAÇÃO DA ARMAÇÃO DESTA MEMBRANA E PROCESSO DE FABRICAÇÃO DA MEMBRANA.

DeferidaInvention Patent
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Application data

Number

PI8402585

Type

Invention Patent

Filing

05/25/1984

Publication

04/23/1985
View on INPI

Progress at the INPI

  1. Filing05/25/84
  2. Publication04/23/85
  3. Examination10/07/86
  4. Allowance08/29/89
  5. Grant09/25/90
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Freudenberg Spunweb S.A

FR

Inventors

J. B. (pessoa física)

FR

J. B. (pessoa física)

FR

Technical data

IPC Classification

D04H 3/14

Priority claims

FR

08769 · 05/25/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

08/29/1989

RPI 984

Exigência - art. 36 da LPI

#6.1

01/31/1989

RPI 954

Exigência - art. 36 da LPI

#6.1

08/16/1988

RPI 930

Solicitação de exame técnico

#4.1

10/07/1986

RPI 833

Publicação do pedido de patente

#3.1

04/23/1985

RPI 757

Pedido de patente depositado

#2.1

08/07/1984

RPI 720

Carta-patente expirada

#21.1

Patente extinta em 25/05/99

07/08/2008

RPI 1957

Pedido de licença compulsória

#20.1

11/23/1993

RPI 1199

Concessão da patente

#16.1

09/25/1990

RPI 1034

110

06/05/1990

RPI 1021

Recurso

#12.1

01/23/1990

RPI 1003

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