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Official data from INPI

COMPOSIÇÃO EXPLOSIVA DO TIPO DE SUSPENSÃO AQUOSA

DeferidaInvention Patent

Application data

Number

PI8306938

Type

Invention Patent

Filing

12/16/1983

Publication

07/24/1984

Progress at the INPI

  1. Filing12/16/83
  2. Publication07/24/84
  3. Examination08/05/86
  4. Allowance09/26/89
  5. Grant03/20/90
  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

I. I. (pessoa física)

US

See this company's full portfolio

Inventors

A. F. (pessoa física)

US

H. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

450,647 · 12/17/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/26/1989

RPI 988

Exigência - art. 36 da LPI

#6.1

02/28/1989

RPI 958

6.2

05/24/1988

RPI 918

Pedido de certificado de adição de invenção

#5.1

12/09/1986

RPI 842

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

14.1

05/07/1985

RPI 759

Publicação do pedido de patente

#3.1

07/24/1984

RPI 718

Pedido de patente depositado

#2.1

02/28/1984

RPI 697

Carta-patente expirada

#21.1

Patente extinta em 16/12/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

03/20/1990

RPI 1010

Notificação para pagamento de retribuição

#13.1

01/23/1990

RPI 1003

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