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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE COPOLÍMEROS CONTENDO GRUPOS HIDROXILA, AGENTE DE REVESTIMENTO E APLICAÇÃO DOS COPOLÍMEROS

Arquivada/ExtintaInvention PatentPCT · EP1989000688

Application data

Number

PI8907527

Type

Invention Patent

Filing

06/19/1989

Publication

06/11/1991

PCT

EP1989000688

Progress at the INPI

  1. Filing06/19/89
  2. Publication06/11/91
  3. Examination09/24/91
  4. Allowance07/27/99
  5. Grant04/18/00
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. 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

U. V. (pessoa física)

US

W. J. (pessoa física)

DE

Technical data

Priority claims

DE

P 38 23 005.4 · 07/07/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 18/04/2010

12/26/2012

RPI 2190

Concessão da patente

#16.1

04/18/2000

RPI 1528

Deferimento

#9.1

07/27/1999

RPI 1490

Republicação - classificação IPC

#15.11

ALTERADA DE C08F 212/04 C08F 220/28 C09D 125/14

12/08/1998

RPI 1457

Exigência - art. 36 da LPI

#6.1

11/03/1998

RPI 1452

Exigência - art. 36 da LPI

#6.1

05/26/1998

RPI 1431

Solicitação de exame técnico

#4.1

09/24/1991

RPI 1086

Notificação de entrada na fase nacional - PCT

#1.3

06/11/1991

RPI 1071

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