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Official data from INPI

ARTIGO POLIMÉRICO, TERMOPLÁSTICO CARREGADO COM PARTÍCULAS, MICROPOROSO E PROCESSO PARA SUA PREPARAÇÃO

Prazo de SigiloInvention Patent

Application data

Number

PI8903833

Type

Invention Patent

Filing

07/31/1989

Publication

03/19/1991

Progress at the INPI

Under appeal
  1. Filing07/31/89
  2. Publication03/19/91
  3. Examination06/15/93
  4. Refused05/11/99
  5. Grant
  6. In force

The application was refused by the INPI on 05/11/1999. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 11/07/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

See this company's full portfolio

Inventors

E. J. (pessoa física)

J. D. (pessoa física)

J. M. (pessoa física)

US

J. M. (pessoa física)

K. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

258.314 · 10/14/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/07/1989

RPI 994

Indeferimento

#9.2

Indeferido com base no Artigo 37 da LPI.

05/11/1999

RPI 1479

Exigência - art. 36 da LPI

#6.1

06/23/1998

RPI 1435

Exigência - art. 36 da LPI

#6.1

02/07/1995

RPI 1262

Solicitação de exame técnico

#4.1

06/15/1993

RPI 1176

Publicação do pedido de patente

#3.1

03/19/1991

RPI 1059

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