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Official data from INPI

PROCESSO PARA CONTROLAR A ASPEREZA DA SUPERFÍCIE DE UM FILME

PublicadaInvention Patent

Application data

Number

PI8804188

Type

Invention Patent

Filing

08/18/1988

Publication

03/14/1989

Progress at the INPI

  1. Filing08/18/88
  2. Publication03/14/89
  3. Abandoned05/21/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 03/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Minnesota Mining and Manufacturing Company

US

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Inventors

C. W. (pessoa física)

Technical data

Priority claims

US

088,160 · 08/21/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/14/1989

RPI 960

Pedido de patente depositado

#2.1

01/10/1989

RPI 951

Arquivamento - Art. 36 §1° da LPI

#11.2

11/28/1995

RPI 1304

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

05/21/1991

RPI 1068

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