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Official data from INPI

AGENTE OXIDANTE EM REATORES FOSFÓRICOS.

Em AnáliseInvention Patent

Application data

Number

PI8502915

Type

Invention Patent

Filing

06/18/1985

Publication

08/23/1988

Progress at the INPI

  1. Filing06/18/85
  2. Publication08/23/88
  3. Examination01/10/89
  4. Allowance10/29/91
  5. Grant08/25/92
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Industrias Nucleares do Brasil S/A - INB

RJ, BR

Inventors

J. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/10/1989

RPI 951

Publicação do pedido de patente

#3.1

08/23/1988

RPI 931

Pedido de patente depositado

#2.1

07/29/1986

RPI 823

Carta-patente expirada

#21.1

Patente extinta em 18/06/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

08/25/1992

RPI 1134

Notificação para pagamento de retribuição

#13.1

03/10/1992

RPI 1110

Deferimento

#9.1

10/29/1991

RPI 1091

14.4

04/30/1991

RPI 1065

15.5

10/23/1990

RPI 1038

Exigência - art. 36 da LPI

#6.1

06/19/1990

RPI 1023

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