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Official data from INPI

Processo para tratamento de tela ou feltro de fábrica de papel para remover seus depósitos orgânicos e/ou inorgânicos, e processo para a preparação de uma composição.

PublicadaInvention Patent

Application data

Number

PI8800617

Type

Invention Patent

Filing

02/12/1988

Publication

09/27/1988

Progress at the INPI

  1. Filing02/12/88
  2. Publication09/27/88
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 02/12/1988 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W.R. Grace & Co.

US

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Inventors

A. S. (pessoa física)

J. S. (pessoa física)

R. C. (pessoa física)

T. C. (pessoa física)

Technical data

IPC Classification

Priority claims

EP

87301326.2 · 02/16/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/27/1988

RPI 936

Pedido de patente depositado

#2.1

05/17/1988

RPI 917

Arquivamento - Art. 33 da LPI

#11.1

06/11/1991

RPI 1071

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