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Official data from INPI

Elemento de ignição de um detonador, detonador e sistema de detonação sequencial

PublicadaInvention Patent
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Application data

Number

PI8706274

Type

Invention Patent

Filing

11/20/1987

Publication

06/13/1989
View on INPI

Progress at the INPI

  1. Filing11/20/87
  2. Publication06/13/89
  3. Examination12/18/90
  4. Allowance05/27/97
  5. Grant07/28/98
  6. Expired08/26/08

The letters patent expired on 08/26/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 06/13/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Expert Explosives (Proprietery) Limited

ZA

Inventors

S. S. (pessoa física)

ZA

V. P. (pessoa física)

ZA

Technical data

IPC Classification

F42D 1/06

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/13/1989

RPI 973

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 28/07/2008

08/26/2008

RPI 1964

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

05/27/1997

RPI 1382

Exigência - art. 36 da LPI

#6.1

01/23/1996

RPI 1312

Exigência - art. 36 da LPI

#6.1

09/05/1995

RPI 1292

Solicitação de exame técnico

#4.1

12/18/1990

RPI 1046

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