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Official data from INPI

COMPOSIÇÃO DE MISTURA ESTABILIZADA DE CARVÃO-ÓLEO

ConcedidaInvention Patent

Application data

Number

PI8201434

Type

Invention Patent

Filing

03/16/1982

Publication

02/01/1983

Progress at the INPI

  1. Filing03/16/82
  2. Publication02/01/83
  3. Examination06/14/83
  4. Allowance10/04/88
  5. Grant05/30/89
  6. Terminated07/18/95

The patent was granted on 05/30/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dai_Ichi Kogyo Seiyaku CO.,lTDA

JP

Inventors

A. N. (pessoa física)

JP

S. H. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

50715 · 04/03/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/30/1989

RPI 971

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

05/24/1988

RPI 918

Pedido de certificado de adição de invenção

#5.1

10/25/1983

RPI 679

Solicitação de exame técnico

#4.1

06/14/1983

RPI 660

Publicação do pedido de patente

#3.1

02/01/1983

RPI 641

Pedido de patente depositado

#2.1

04/27/1982

RPI 601

Anuidade - prazo legal encerrado

#18.2

07/18/1995

RPI 1285

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