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Official data from INPI

PROCESSO DE MEDIÇÃO DE ALONGAMENTO EM TIRAS METÁLICAS POR MULTI-AMOSTRAGEM

ConcedidaInvention Patent

Application data

Number

PI8207538

Type

Invention Patent

Filing

12/28/1982

Publication

07/31/1984

Progress at the INPI

  1. Filing12/28/82
  2. Publication07/31/84
  3. Examination
  4. Allowance04/26/88
  5. Grant12/27/88
  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: 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. K. (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

02/09/1988

RPI 903

Retificação

#15.3

11/10/1987

RPI 890

Exigência - art. 36 da LPI

#6.1

03/24/1987

RPI 857

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Carta-patente expirada

#21.1

Patente extinta em 28/12/97

07/01/2008

RPI 1956

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