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Official data from INPI

DISPERSAO AQUOSA DE PLASTICO A BASE DE UM POLIMERO DE ESTER VINILICO,PROCESSO PARA A SUA PRODUCAO,E AGENTE DE PINTURA PREPARADO A PARTIR DA MESMA

ConcedidaInvention Patent

Application data

Number

PI7903320

Type

Invention Patent

Filing

05/29/1978

Publication

-

Progress at the INPI

  1. Filing05/29/78
  2. Publication
  3. Examination
  4. Allowance06/14/88
  5. Grant12/27/88
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOECHST AG

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Inventors

N. E. (pessoa física)

O. H. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

12/08/1987

RPI 894

11.8

08/04/1987

RPI 876

Retificação

#15.3

04/22/1987

RPI 861

Exigência - art. 36 da LPI

#6.1

11/16/1983

RPI 682

6.2

03/16/1982

RPI 595

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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