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Official data from INPI

COMPOSIÇÃO REVELADORA PARA REVELAR REVESTIMENTOS DE MÁSCARA DE SOLDA, CONCENTRADO DE COMPOSIÇÃO REVELADORA E PROCESSO PARA REVELAR REVESTIMENTOS DE MÁSCARA DE SOLDA NÃO EXPOSTOS

ArquivadaInvention Patent

Application data

Number

PI8903684

Type

Invention Patent

Filing

07/25/1989

Publication

03/13/1990

Progress at the INPI

  1. Filing07/25/89
  2. Publication03/13/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 07/25/1989 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/22/1992. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M&T Chemicals Inc

US

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Inventors

K. T. (pessoa física)

P. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

225,449 · 07/28/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

12/22/1992

RPI 1151

14.4

11/26/1991

RPI 1095

14.1

11/19/1991

RPI 1094

Publicação do pedido de patente

#3.1

03/13/1990

RPI 1009

Pedido de patente depositado

#2.1

01/16/1990

RPI 1002

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