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Official data from INPI

PROCESSO PARA A PRODUÇÃO DE COMPOSTOS AZÓICOS

ConcedidaInvention Patent

Application data

Number

PI8206151

Type

Invention Patent

Filing

10/21/1982

Publication

09/20/1983

Progress at the INPI

  1. Filing10/21/82
  2. Publication09/20/83
  3. Examination09/17/85
  4. Allowance05/02/89
  5. Grant11/28/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

D. K. (pessoa física)

DE

D. M. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 31 41 908.9 · 10/22/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

10/18/1988

RPI 939

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

Publicação do pedido de patente

#3.1

09/20/1983

RPI 674

Pedido de patente depositado

#2.1

12/14/1982

RPI 634

Carta-patente expirada

#21.1

Patente extinta em 21/10/97

07/01/2008

RPI 1956

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