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Official data from INPI

RECIPIENTE PARA UM FORNO DE FUNDIÇÃO DE METAL

ConcedidaInvention Patent

Application data

Number

PI8101421

Type

Invention Patent

Filing

03/11/1981

Publication

08/17/1982

Progress at the INPI

  1. Filing03/11/81
  2. Publication08/17/82
  3. Examination10/16/84
  4. Allowance09/17/85
  5. Grant05/27/86
  6. Expired09/24/96

The letters patent expired on 09/24/1996: 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. A. (pessoa física)

DE

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Inventors

M. V. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 30 36 564.1 · 09/27/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Notificação para pagamento de retribuição

#13.1

01/21/1986

RPI 796

Deferimento

#9.1

09/17/1985

RPI 778

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

10/16/1984

RPI 730

Publicação do pedido de patente

#3.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

09/24/1996

RPI 1347

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