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Official data from INPI

PROCESSO PARA FABRICAÇÃO DE UMA POLPA ALVEJADA SUBSTANCIALMENTE DE MODO UNIFORME A PARTIR DE UM MATERIAL LIGNOCELULÓSICO

Arquivada/ExtintaInvention PatentPCT · US1990002823

Application data

Number

PI9007533

Type

Invention Patent

Filing

05/17/1990

Publication

04/28/1992

PCT

US1990002823

Progress at the INPI

  1. Filing05/17/90
  2. Publication04/28/92
  3. Examination07/20/93
  4. Allowance05/04/99
  5. Grant09/08/99
  6. Expired01/15/13

The letters patent expired on 01/15/2013: 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: 01/15/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

A. R. (pessoa física)

US

B. G. (pessoa física)

US

M. P. (pessoa física)

US

T. G. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 17/05/2010

01/15/2013

RPI 2193

Concessão da patente

#16.1

09/08/1999

RPI 1496

Deferimento

#9.1

05/04/1999

RPI 1478

Exigência - art. 36 da LPI

#6.1

09/29/1998

RPI 1449

Solicitação de exame técnico

#4.1

07/20/1993

RPI 1181

Notificação de entrada na fase nacional - PCT

#1.3

04/28/1992

RPI 1117

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