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Official data from INPI

MÉTODO PARA A COMPRESSÃO E DESCOMPRESSÃO DE UM CONJUNTO DE DADOS

Em AnáliseInvention Patent
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Application data

Number

PI8602558

Type

Invention Patent

Filing

06/03/1986

Publication

02/03/1987
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Progress at the INPI

  1. Filing06/03/86
  2. Publication02/03/87
  3. Examination03/28/89
  4. Allowance09/06/94
  5. Grant03/28/95
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

L. L. (pessoa física)

US

Technical data

IPC Classification

H03M 7/42

Priority claims

US

743.443 · 06/11/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/28/1989

RPI 962

Publicação do pedido de patente

#3.1

02/03/1987

RPI 850

Pedido de patente depositado

#2.1

12/23/1986

RPI 844

Carta-patente expirada

#21.1

Patente extinta em 03/06/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/28/1995

RPI 1269

Deferimento

#9.1

09/06/1994

RPI 1240

Exigência - art. 36 da LPI

#6.1

04/05/1994

RPI 1218

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Exigência - art. 36 da LPI

#6.1

03/09/1993

RPI 1162

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