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Official data from INPI

PROCESSO PARA AUMENTAR A TAXA DE REMOÇÃO DE ÁGUA DE UMA ESTEIRA DE UM PRODUTO DE PAPEL, E, PROCESSO APERFEIÇOADO PARA FABRICAR UM PRODUTO DE PAPEL

Em AnáliseInvention PatentPCT · US1987000333

Application data

Number

PI8707972

Type

Invention Patent

Filing

02/24/1987

Publication

02/13/1990

PCT

US1987000333

Progress at the INPI

  1. Filing02/24/87
  2. Publication02/13/90
  3. Examination10/30/90
  4. Allowance
  5. Grant
  6. In force

Published on 02/13/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

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Latest action published by the INPI: 03/27/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Paper Chemistry Laboratory, Inc

US

Inventors

J. P. (pessoa física)

M. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 101/48; D21D 3/00; D21F 11/00.

03/27/2018

RPI 2464

Retificação

#15.3

09/26/1995

RPI 1295

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

Notificação de entrada na fase nacional - PCT

#1.3

02/13/1990

RPI 1006

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