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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8302025

Type

Invention Patent

Filing

04/15/1983

Publication

12/18/1984

Progress at the INPI

  1. Filing04/15/83
  2. Publication12/27/83
  3. Examination03/25/86
  4. Allowance12/16/86
  5. Grant07/28/87
  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.

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Latest action published by the INPI: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nacam

FR

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Inventors

H. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Deferimento

#9.1

12/16/1986

RPI 843

Solicitação de exame técnico

#4.1

03/25/1986

RPI 805

Publicação do pedido de patente

#3.1

12/18/1984

RPI 739

Publicação do pedido de patente

#3.1

12/27/1983

RPI 688

Pedido de patente depositado

#2.1

06/07/1983

RPI 659

Carta-patente expirada

#21.1

Patente extinta em 15/04/98

07/01/2008

RPI 1956

Cessão de direito de exploração

#22.1

11/12/1991

RPI 1093

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