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Official data from INPI

PROCESSO PARA A REMOÇÃO DOS TEORES DE FERRO DE MINÉRIOS TITANÍFEROS

Em AnáliseInvention Patent

Application data

Number

PI8700623

Type

Invention Patent

Filing

02/11/1987

Publication

12/15/1987

Progress at the INPI

  1. Filing02/11/87
  2. Publication12/15/87
  3. Examination06/28/88
  4. Allowance08/02/94
  5. Abandoned
  6. In force

The application was allowed on 08/02/1994 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

H. G. (pessoa física)

US

J. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

829.231 · 02/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/28/1988

RPI 923

Publicação do pedido de patente

#3.1

12/15/1987

RPI 895

Pedido de patente depositado

#2.1

06/09/1987

RPI 868

Arquivamento - Art. 38 §2° da LPI

#11.4

09/26/1995

RPI 1295

Notificação para pagamento de retribuição

#13.1

11/29/1994

RPI 1252

Deferimento

#9.1

08/02/1994

RPI 1235

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