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Official data from INPI

ARTIGO MICROPOROSO E PROCESSO PARA SUA PREPARAÇÃO

PublicadaInvention Patent

Application data

Number

PI8804719

Type

Invention Patent

Filing

09/13/1988

Publication

04/18/1989

Progress at the INPI

  1. Filing09/13/88
  2. Publication04/18/89
  3. Examination08/06/91
  4. Allowance08/17/99
  5. Abandoned
  6. In force

The application was allowed on 08/17/1999 but abandoned for failure to pay the grant fee (art. 38 of the Brazilian IP Act). The letters patent were never issued.

Talk to a specialist

Latest action published by the INPI: 04/18/1989. 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

K. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

098.601 · 09/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

04/18/1989

RPI 965

Pedido de patente depositado

#2.1

01/24/1989

RPI 953

Arquivamento - Art. 38 §2° da LPI

#11.4

Arquivamento - Art. 38 § 2º da LPI

11/14/2000

RPI 1558

Deferimento

#9.1

Defiro com ressalva ao que incidir no Artigo 229 da LPI 9279/96.

08/17/1999

RPI 1493

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

08/06/1991

RPI 1079

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