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Official data from INPI

CONJUNTO DE GAXETA

PublicadaInvention Patent

Application data

Number

PI8804377

Type

Invention Patent

Filing

08/26/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing08/26/88
  2. Publication04/18/89
  3. Examination02/01/90
  4. Allowance08/17/93
  5. Grant03/29/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. I. (pessoa física)

US

Inventors

J. I. (pessoa física)

Technical data

IPC Classification

Priority claims

US

090.843 · 08/28/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

03/28/1989

RPI 962

Carta-patente expirada

#21.1

Patente extinta em 26/08/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

03/29/1994

RPI 1217

Deferimento

#9.1

08/17/1993

RPI 1185

Pedido de certificado de adição de invenção

#5.1

06/12/1990

RPI 1022

Pedido de certificado de adição de invenção

#5.1

06/05/1990

RPI 1021

Solicitação de exame técnico

#4.1

02/01/1990

RPI 1004

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