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Official data from INPI

COMPOSIÇÀO DE LÁTEX E MÉTODO DE REVESTIMENTO DE PAPEL

PublicadaInvention Patent

Application data

Number

PI8702128

Type

Invention Patent

Filing

04/30/1987

Publication

02/09/1988

Progress at the INPI

  1. Filing04/30/87
  2. Publication02/09/88
  3. Examination09/25/90
  4. Allowance
  5. Grant
  6. In force

Published on 02/09/1988, 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: 02/09/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. L. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

858.997 · 05/02/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/09/1988

RPI 903

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era D21H 3/36.

03/27/2018

RPI 2464

Retificação

#15.3

08/03/1993

RPI 1183

15.18

10/22/1991

RPI 1090

Retificação

#15.3

09/17/1991

RPI 1085

Solicitação de exame técnico

#4.1

09/25/1990

RPI 1034

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