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Official data from INPI

COLUNA PARA A TROCA DE MATÉRIA E/OU DE CALOR E PARA A REALIZAÇÃO DE REAÇÕES QUÍMICAS EM CORRENTE CONTÍNUA OU CONTRA-CORRENTE

PublicadaInvention Patent

Application data

Number

PI8701473

Type

Invention Patent

Filing

04/01/1987

Publication

10/11/1988

Progress at the INPI

Office action pending
  1. Filing04/01/87
  2. Publication10/11/88
  3. Examination01/08/91
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical office action on this application. If it is not answered in time, the application is abandoned (art. 36 of the Brazilian IP Act).

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Latest action published by the INPI: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sulzer Brasil S/A

RJ, BR

Inventors

F. S. (pessoa física)

CH

P. M. (pessoa física)

CH

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/11/1988

RPI 938

Pedido de patente depositado

#2.1

07/07/1987

RPI 872

Retificação

#15.3

09/17/1996

RPI 1346

Exigência - art. 36 da LPI

#6.1

08/30/1994

RPI 1239

14.7

02/16/1994

RPI 1211

Solicitação de exame técnico

#4.1

01/08/1991

RPI 1049

14.4

03/01/1990

RPI 1007

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