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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8104072

Type

Invention Patent

Filing

06/26/1981

Publication

03/16/1982

Progress at the INPI

  1. Filing06/26/81
  2. Publication03/16/82
  3. Examination07/13/82
  4. Allowance03/05/85
  5. Grant08/27/85
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

J. M. (pessoa física)

DE

Inventors

M. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

06/25/1985

RPI 766

Deferimento

#9.1

03/05/1985

RPI 750

Exigência - art. 36 da LPI

#6.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Publicação do pedido de patente

#3.1

03/16/1982

RPI 595

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

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