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Official data from INPI

PROCESSO PARA TRATAMENTO DE REAQUECIMENTO DE LINGOTES DE ACO FIOS E/OU LINGOTES DE ACO QUENTES E APARELHO PARA A REALIZACAO DO DITO PROCESSO

Em AnáliseInvention Patent

Application data

Number

PI7807480

Type

Invention Patent

Filing

06/21/1978

Publication

-

Progress at the INPI

  1. Filing06/21/78
  2. Publication
  3. Examination07/13/82
  4. Allowance12/20/83
  5. Grant06/26/84
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 04/02/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. K. (pessoa física)

Inventors

T. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

01/18/1983

RPI 639

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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