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Official data from INPI

PROCESSO PARA A FABRICAÇÃO DE UM FIO DE MULTIFILAMENTOS CONSTITUÍDOS SUBSTANCIALMENTE DE POLIÉSTER.

Em AnáliseInvention Patent

Application data

Number

PI8601506

Type

Invention Patent

Filing

04/03/1986

Publication

12/09/1986

Progress at the INPI

  1. Filing04/03/86
  2. Publication12/09/86
  3. Examination12/27/88
  4. Allowance03/16/93
  5. Grant08/31/93
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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

Akzo N.V.

NL

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Inventors

H. F. (pessoa física)

NL

K. W. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

NL

8 501 019 · 04/04/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/27/1988

RPI 949

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

10/29/1986

RPI 836

Carta-patente expirada

#21.1

Patente extinta em 03/04/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

07/06/1993

RPI 1179

Deferimento

#9.1

03/16/1993

RPI 1163

Exigência - art. 36 da LPI

#6.1

05/26/1992

RPI 1121

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