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Official data from INPI

COMPOSIÇÕES DE ENGOMAR PAPEL

PublicadaInvention Patent

Application data

Number

PI8802569

Type

Invention Patent

Filing

05/26/1988

Publication

12/20/1988

Progress at the INPI

  1. Filing05/26/88
  2. Publication12/20/88
  3. Examination01/29/91
  4. Allowance
  5. Grant
  6. In force

Published on 12/20/1988, 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: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Albright & Wilson Limited

GB

See this company's full portfolio

Inventors

N. M. (pessoa física)

GB

W. B. (pessoa física)

GB

Technical data

Priority claims

US

GB 871 2370 · 05/26/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/20/1988

RPI 948

Pedido de patente depositado

#2.1

10/18/1988

RPI 939

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era D21H 3/12.

03/27/2018

RPI 2464

Retificação

#15.3

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

01/29/1991

RPI 1052

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