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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8502184

Type

Invention Patent

Filing

05/08/1985

Publication

01/07/1986

Progress at the INPI

  1. Filing05/08/85
  2. Publication01/07/86
  3. Examination06/09/87
  4. Allowance12/20/88
  5. Grant09/26/89
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. C. (pessoa física)

JP

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Inventors

M. S. (pessoa física)

S. K. (pessoa física)

W. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

04/25/1989

RPI 966

Deferimento

#9.1

12/20/1988

RPI 948

Republicação - classificação IPC

#15.11

11/22/1988

RPI 944

Solicitação de exame técnico

#4.1

06/09/1987

RPI 868

Publicação do pedido de patente

#3.1

01/07/1986

RPI 794

Pedido de patente depositado

#2.1

07/16/1985

RPI 769

Carta-patente expirada

#21.1

Patente extinta em 08/05/2000

07/15/2008

RPI 1958

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