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Official data from INPI

AGENTE DESESPUMANTE SEM ÓLEO DE SILICONE, RESISTENTE AOS ÁLCALIS, PROCESSO PARA SUA PREPARAÇÃO, APLICAÇÃO E PROCESSO PARA DESESPUMAR SISTEMAS AQUOSOS

ArquivadaInvention Patent

Application data

Number

PI8906707

Type

Invention Patent

Filing

12/22/1989

Publication

08/21/1990

Progress at the INPI

  1. Filing12/22/89
  2. Publication08/21/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 12/22/1989 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: 12/15/1992. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ciba-Geigy AG

CH

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Inventors

C. G. (pessoa física)

CH

R. T. (pessoa física)

Technical data

IPC Classification

Priority claims

CH

3249/89 · 09/07/1989

CH

58/89 · 01/09/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

12/15/1992

RPI 1150

Publicação do pedido de patente

#3.1

08/21/1990

RPI 1029

Pedido de patente depositado

#2.1

05/01/1990

RPI 1016

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