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Official data from INPI

PROCESSO E APARELHO PARA FABRICAR EXPLOSIVO EM FORMA DE EMULSÃO

ConcedidaInvention Patent

Application data

Number

PI8306266

Type

Invention Patent

Filing

11/14/1983

Publication

06/19/1984

Progress at the INPI

  1. Filing11/14/83
  2. Publication06/19/84
  3. Examination08/12/86
  4. Allowance01/10/89
  5. Grant09/26/89
  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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Explo Brasil S.A.

RJ, BR

See this company's full portfolio

Inventors

D. E. (pessoa física)

DE

J. S. (pessoa física)

CA

P. H. (pessoa física)

ZA

Technical data

IPC Classification

Priority claims

ZA

82/8466 · 11/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

05/30/1989

RPI 971

Deferimento

#9.1

01/10/1989

RPI 951

14.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

06/21/1988

RPI 922

6.2

06/30/1987

RPI 871

Solicitação de exame técnico

#4.1

08/12/1986

RPI 825

Publicação do pedido de patente

#3.1

06/19/1984

RPI 713

Pedido de patente depositado

#2.1

01/24/1984

RPI 692

Carta-patente expirada

#21.1

Patente extinta em 14/11/98

07/01/2008

RPI 1956

20.4

08/25/1992

RPI 1134

20.7

08/25/1992

RPI 1134

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