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Official data from INPI

MÉTODO DE ESTABILIZAÇÃO DA ESTRUTURA ESPESSADA OU GELIFICADA DE UM EXPLOSIVO QUE CONTÉM ÁGUA; EXPLOSIVO CONTENDO ÁGUA

ConcedidaInvention Patent

Application data

Number

PI8200151

Type

Invention Patent

Filing

01/13/1982

Publication

11/03/1982

Progress at the INPI

  1. Filing01/13/82
  2. Publication11/03/82
  3. Examination04/19/83
  4. Allowance08/26/86
  5. Grant04/28/87
  6. Terminated02/11/92

The patent was granted on 04/28/1987 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: 04/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

L. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

225.725 · 01/16/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/28/1987

RPI 862

Notificação para pagamento de retribuição

#13.1

12/30/1986

RPI 845

Deferimento

#9.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

10/01/1985

RPI 780

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

Publicação do pedido de patente

#3.1

11/03/1982

RPI 628

Pedido de patente depositado

#2.1

03/02/1982

RPI 593

Anuidade - prazo legal encerrado

#18.2

02/11/1992

RPI 1106

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