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Official data from INPI

COMPOSICAO EXPLOSIVA DO TIPO EMULSAO E PROCESSO PARA SUA PREPARACAO

ConcedidaInvention Patent

Application data

Number

PI8000143

Type

Invention Patent

Filing

08/06/1979

Publication

-

Progress at the INPI

  1. Filing08/06/79
  2. Publication
  3. Examination
  4. Allowance07/08/86
  5. Grant02/03/87
  6. Terminated02/11/92

The patent was granted on 02/03/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

O. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

07/09/1985

RPI 768

Conhecimento de parecer técnico

#7.1

10/02/1984

RPI 728

Conhecimento de parecer técnico

#7.1

01/10/1984

RPI 690

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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