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Official data from INPI

APERFEIÇOAMENTO EM CONEXÃO.

ConcedidaInvention Patent

Application data

Number

PI8207441

Type

Invention Patent

Filing

12/22/1982

Publication

04/12/1983

Progress at the INPI

  1. Filing12/22/82
  2. Publication04/12/83
  3. Examination06/28/83
  4. Allowance04/22/86
  5. Grant07/25/89
  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.

Talk to a specialist

Latest action published by the INPI: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. P. (pessoa física)

SP, BR

Inventors

P. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/17/1989

RPI 952

110

10/25/1988

RPI 940

14.1

11/04/1986

RPI 837

Recurso

#12.1

07/22/1986

RPI 822

Deferimento

#9.1

04/22/1986

RPI 809

Exigência - art. 36 da LPI

#6.1

06/18/1985

RPI 765

Pedido de certificado de adição de invenção

#5.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

06/28/1983

RPI 662

Publicação antecipada

#3.2

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

02/16/1983

RPI 643

Carta-patente expirada

#21.1

Patente extinta em 22/12/97

07/01/2008

RPI 1956

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