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Official data from INPI

APERFEIÇOAMENTO NO SISTEMA HIDRÁULICO DE ELEVAÇÃO DAS VIGAS MÓVEIS DE UM FORNO DE REAQUECIMENTO DE PLACAS

ConcedidaInvention Patent

Application data

Number

PI8108477

Type

Invention Patent

Filing

12/29/1981

Publication

08/16/1983

Progress at the INPI

  1. Filing12/29/81
  2. Publication08/16/83
  3. Examination12/31/85
  4. Allowance04/26/88
  5. Grant12/27/88
  6. Terminated11/08/94

The patent was granted on 12/27/1988 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Usinas Siderúrgicas de Minas Gerais S/A - USIMINAS

MG, BR

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Inventors

M. D. (pessoa física)

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

08/09/1988

RPI 929

Deferimento

#9.1

04/26/1988

RPI 914

Retificação

#15.6

02/17/1988

RPI 904

Republicação - classificação IPC

#15.11

12/22/1987

RPI 896

Retificação

#15.3

11/24/1987

RPI 892

Solicitação de exame técnico

#4.1

12/31/1985

RPI 793

8.1

08/13/1985

RPI 773

Publicação do pedido de patente

#3.1

08/16/1983

RPI 669

Pedido de patente depositado

#2.1

02/24/1982

RPI 592

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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