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Official data from INPI

COMPOSTO MERCAPTO, RESINA À BASE DE POLITIOURETANO, LENTE DE PLÁSTICO E PROCESSOS PARA A PREPARAÇAO DOS MESMOS.

Em AnáliseInvention Patent

Application data

Number

PI8904398

Type

Invention Patent

Filing

08/31/1989

Publication

10/23/1990

Progress at the INPI

  1. Filing08/31/89
  2. Publication10/23/90
  3. Examination03/02/93
  4. Allowance
  5. Grant
  6. In force

Published on 10/23/1990, 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: 03/20/2018. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Mitsui Toatsu Chemicals, Incorporated

JP

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Inventors

K. S. (pessoa física)

JP

M. I. (pessoa física)

T. S. (pessoa física)

Y. K. (pessoa física)

Technical data

Priority claims

JP

321928/88 · 12/22/1988

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 149/06; C08G 18/38; G02B 1/04.

03/20/2018

RPI 2463

Retificação

#15.3

11/12/1996

RPI 1354

Solicitação de exame técnico

#4.1

03/02/1993

RPI 1161

Publicação do pedido de patente

#3.1

10/23/1990

RPI 1038

Pedido de patente depositado

#2.1

01/09/1990

RPI 1001

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