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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE POLÍMEROS DE ACRILATO E MÉTODO PARA O TRATAMENTO DE COURO

PublicadaInvention Patent

Application data

Number

PI8803716

Type

Invention Patent

Filing

07/26/1988

Publication

02/14/1989

Progress at the INPI

  1. Filing07/26/88
  2. Publication02/14/89
  3. Examination11/20/90
  4. Allowance09/26/95
  5. Grant04/30/96
  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: 02/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Roehm GmbH

DE

Roem Gmbh

DE

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Inventors

D. C. (pessoa física)

DE

D. T. (pessoa física)

DE

E. P. (pessoa física)

DE

G. W. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 37 24 807.3 · 07/27/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/14/1989

RPI 956

Pedido de patente depositado

#2.1

12/27/1988

RPI 949

Carta-patente expirada

#21.1

Patente extinta em 26/07/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

04/30/1996

RPI 1326

Deferimento

#9.1

09/26/1995

RPI 1295

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

Exigência - art. 36 da LPI

#6.1

08/23/1994

RPI 1238

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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