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Official data from INPI

COMPOSIÇÃO TERMOPLÁSTICA MULTIFÁSICA DE POLÍMEROS TERMOPLÁSTICOS POLARES E COPOLÍMEROS EM BLOCO MODIFICADOS RESISTENTES A IMPACTO

PublicadaInvention Patent

Application data

Number

PI8806849

Type

Invention Patent

Filing

12/23/1988

Publication

08/29/1989

Progress at the INPI

  1. Filing12/23/88
  2. Publication08/29/89
  3. Examination08/27/91
  4. Allowance03/12/96
  5. Grant10/29/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

M. M. (pessoa física)

US

Technical data

Priority claims

US

140.076 · 12/31/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/29/1989

RPI 984

Pedido de patente depositado

#2.1

04/25/1989

RPI 966

Carta-patente expirada

#21.1

Patente extinta em 23/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/29/1996

RPI 1352

Deferimento

#9.1

03/12/1996

RPI 1319

Exigência - art. 36 da LPI

#6.1

05/23/1995

RPI 1277

Solicitação de exame técnico

#4.1

08/27/1991

RPI 1082

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