(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA A REDUÇÃO DIRETA DE MATERIAIS CONTENDO ÓXIDO DE FERRO

Em ExigênciaInvention Patent

Application data

Number

PI8503884

Type

Invention Patent

Filing

08/15/1985

Publication

05/27/1986

Progress at the INPI

  1. Filing08/15/85
  2. Publication05/27/86
  3. Examination08/19/86
  4. Allowance06/05/90
  5. Grant09/24/91
  6. Terminated08/08/95

The patent was granted on 09/24/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Voest-Alpine Industrieanlagenbau GmbH

DE

Voest-Alpine Industrieanlagenbau Gesellschaft M.B.H.

AT

See this company's full portfolio

Inventors

H. P. (pessoa física)

AT

H. S. (pessoa física)

K. M. (pessoa física)

AT

Technical data

IPC Classification

Priority claims

AT

A 2633/84 · 08/16/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

Publicação do pedido de patente

#3.1

05/27/1986

RPI 814

Pedido de patente depositado

#2.1

10/15/1985

RPI 782

Anuidade - prazo legal encerrado

#18.2

08/08/1995

RPI 1288

Concessão da patente

#16.1

09/24/1991

RPI 1086

Republicação - classificação IPC

#15.11

06/18/1991

RPI 1072

14.1

05/07/1991

RPI 1066

Notificação para pagamento de retribuição

#13.1

09/18/1990

RPI 1033

Deferimento

#9.1

06/05/1990

RPI 1021

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.