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Official data from INPI

UM PROCESSO PARA A PREPARAÇÃO DE TRISFENOL METANOS

PublicadaInvention Patent

Application data

Number

PI8705167

Type

Invention Patent

Filing

09/15/1987

Publication

04/18/1989

Progress at the INPI

  1. Filing09/15/87
  2. Publication04/18/89
  3. Abandoned05/28/91
  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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

K. C. (pessoa física)

US

Technical data

IPC Classification

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

12/22/1987

RPI 896

Arquivamento - Art. 36 §1° da LPI

#11.2

04/26/1994

RPI 1221

Exigência - art. 36 da LPI

#6.1

09/14/1993

RPI 1189

Solicitação de exame técnico

#4.1

05/28/1991

RPI 1069

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