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Official data from INPI

PROCESSO CONTÍNUO E APARELHO PARA A COAGULAÇÃO DE LÁTEX DE BORRACHA NATURAL

Em ExigênciaInvention Patent

Application data

Number

PI8505475

Type

Invention Patent

Filing

11/01/1985

Publication

08/05/1986

Progress at the INPI

  1. Filing11/01/85
  2. Publication08/05/86
  3. Examination07/12/88
  4. Allowance08/21/90
  5. Grant03/26/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Board of the Rubber Research Institute of Malaysia

MY

Inventors

B. S. (pessoa física)

T. K. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

8427736 · 11/02/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

11/07/1989

RPI 994

Solicitação de exame técnico

#4.1

07/12/1988

RPI 925

Publicação do pedido de patente

#3.1

08/05/1986

RPI 824

Pedido de patente depositado

#2.1

01/14/1986

RPI 795

Carta-patente expirada

#21.1

Patente extinta em 01/11/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/04/1990

RPI 1044

Deferimento

#9.1

08/21/1990

RPI 1029

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