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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE UM COPOLÍMERO DE ACRILATO RAMIFICADO COM DUPLAS LIGAÇÕES POLIMERIZÁVEIS

Arquivada/ExtintaInvention PatentPCT · EP1988000242

Application data

Number

PI8807436

Type

Invention Patent

Filing

03/24/1988

Publication

04/10/1990

PCT

EP1988000242

Progress at the INPI

  1. Filing03/24/88
  2. Publication04/10/90
  3. Examination07/24/90
  4. Allowance06/15/99
  5. Grant02/08/00
  6. Expired12/11/12

The letters patent expired on 12/11/2012: 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: 12/11/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Basf Lacke + Farben Aktiengesellschaft

DE

See this company's full portfolio

Inventors

W. J. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P3710343.1 · 03/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/02/2010

12/11/2012

RPI 2188

Concessão da patente

#16.1

02/08/2000

RPI 1518

Deferimento

#9.1

06/15/1999

RPI 1484

Exigência - art. 36 da LPI

#6.1

01/12/1999

RPI 1462

Exigência - art. 36 da LPI

#6.1

06/23/1998

RPI 1435

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Retificação

#15.6

12/17/1991

RPI 1098

Retificação

#15.3

10/01/1991

RPI 1087

Solicitação de exame técnico

#4.1

07/24/1990

RPI 1025

Notificação de entrada na fase nacional - PCT

#1.3

04/10/1990

RPI 1013

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