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Official data from INPI

COMPOSIÇÃO BETUMINOSA AUTO-ADESIVA, APLICÁVEL A FRIO, E MEMBRANA PROTETORA.

PublicadaInvention Patent

Application data

Number

PI8701229

Type

Invention Patent

Filing

03/18/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing03/18/87
  2. Publication12/22/87
  3. Examination06/12/90
  4. Allowance02/24/93
  5. Grant08/31/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/22/1987. 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

G. G. (pessoa física)

NL

W. V. (pessoa física)

NL

Technical data

IPC Classification

Priority claims

GB

8606903 · 03/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Carta-patente expirada

#21.1

Patente extinta em 18/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/08/1993

RPI 1175

Deferimento

#9.1

02/24/1993

RPI 1160

Exigência - art. 36 da LPI

#6.1

06/02/1992

RPI 1122

Solicitação de exame técnico

#4.1

06/12/1990

RPI 1022

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