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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8403098

Type

Invention Patent

Filing

06/20/1984

Publication

05/28/1985

Progress at the INPI

  1. Filing06/20/84
  2. Publication05/28/85
  3. Examination10/27/87
  4. Allowance06/28/88
  5. Grant02/28/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. C. (pessoa física)

US

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Inventors

D. C. (pessoa física)

H. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Deferimento

#9.1

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

10/27/1987

RPI 888

11.8

09/01/1987

RPI 880

Retificação

#15.3

07/21/1987

RPI 874

14.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

05/28/1985

RPI 762

Pedido de patente depositado

#2.1

08/28/1984

RPI 723

Carta-patente expirada

#21.1

Patente extinta em 20/06/99

07/08/2008

RPI 1957

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