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Official data from INPI

GRADE DE PLÁSTICO REFORÇADA POR FIBRAS

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004628

Type

Invention Patent

Filing

09/17/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/17/90
  2. Publication09/10/91
  3. Examination09/21/93
  4. Allowance04/16/96
  5. Grant03/25/97
  6. Expired06/01/10

The letters patent expired on 06/01/2010: 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: 06/01/2010. 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

J. J. (pessoa física)

NL

M. C. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8921076.9 · 09/18/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/09/2005

06/01/2010

RPI 2056

Concessão da patente

#16.1

03/25/1997

RPI 1373

Deferimento

#9.1

04/16/1996

RPI 1324

Solicitação de exame técnico

#4.1

09/21/1993

RPI 1190

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/19/1991

RPI 1059

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