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Official data from INPI

COMPOLIMERO EM BLOCO FUNCIONALIZADO, COMPOSIÇÕES POLIMÉRICAS RESISTENTES A IMPACTO E PROCESSO PARA PRODUZIR COMPOLIMERO FUNCIONALIZADO.

Em AnáliseInvention Patent

Application data

Number

PI8603882

Type

Invention Patent

Filing

08/14/1986

Publication

03/24/1987

Progress at the INPI

  1. Filing08/14/86
  2. Publication03/24/87
  3. Examination03/21/89
  4. Allowance07/20/93
  5. Grant02/16/94
  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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

See this company's full portfolio

Inventors

M. M. (pessoa física)

R. L. (pessoa física)

US

W. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

766215 · 08/16/1985

US

766216 · 08/16/1985

US

766217 · 08/16/1985

US

766622 · 08/19/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/21/1989

RPI 961

Publicação do pedido de patente

#3.1

03/24/1987

RPI 857

Pedido de patente depositado

#2.1

01/06/1987

RPI 846

Carta-patente expirada

#21.1

Patente extinta em 14/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/16/1994

RPI 1211

Deferimento

#9.1

07/20/1993

RPI 1181

Republicação - classificação IPC

#15.11

09/15/1992

RPI 1137

Exigência - art. 36 da LPI

#6.1

09/15/1992

RPI 1137

Exigência - art. 36 da LPI

#6.1

09/17/1991

RPI 1085

15.18

09/10/1991

RPI 1084

15.5

07/16/1991

RPI 1076

6.2

08/07/1990

RPI 1027

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