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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8100139

Type

Invention Patent

Filing

01/12/1981

Publication

09/14/1982

Progress at the INPI

  1. Filing01/12/81
  2. Publication09/14/82
  3. Examination11/16/82
  4. Allowance08/07/84
  5. Grant07/29/86
  6. Expired03/19/96

The letters patent expired on 03/19/1996: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Vulcão S/A. Industrias Metalurgicas e Plasticas.

SP, BR

Inventors

O. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/29/1986

RPI 823

Notificação para pagamento de retribuição

#13.1

03/11/1986

RPI 803

110

01/07/1986

RPI 794

Recurso

#12.1

11/27/1984

RPI 736

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

04/17/1984

RPI 704

Solicitação de exame técnico

#4.1

11/16/1982

RPI 630

Publicação do pedido de patente

#3.1

09/14/1982

RPI 621

Carta-patente expirada

#21.1

03/19/1996

RPI 1320

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