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Official data from INPI

TEAR CIRCULAR.

ConcedidaInvention Patent

Application data

Number

PI8306187

Type

Invention Patent

Filing

11/10/1983

Publication

07/31/1984

Progress at the INPI

  1. Filing11/10/83
  2. Publication07/31/84
  3. Examination12/26/84
  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.

Talk to a specialist

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

Applicants and inventors

Applicants

C. A. (pessoa física)

AT

Inventors

B. J. (pessoa física)

G. J. (pessoa física)

M. B. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Priority claims

AT

A 4100-82 · 11/11/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

09/03/1985

RPI 776

Solicitação de exame técnico

#4.1

12/26/1984

RPI 740

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

01/24/1984

RPI 692

Carta-patente expirada

#21.1

Patente extinta em 10/11/98

07/01/2008

RPI 1956

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