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Official data from INPI

Processo para o tratamento de catalisadores - trocadores de cátions fortemente ácidos.

Em AnáliseInvention Patent
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Application data

Number

PI8601564

Type

Invention Patent

Filing

04/04/1986

Publication

12/09/1986
View on INPI

Progress at the INPI

Awaiting grant fee payment
  1. Filing04/04/86
  2. Publication12/09/86
  3. Examination01/24/89
  4. Allowance04/02/91
  5. Grant
  6. In force

The application was allowed by the INPI on 04/02/1991. The grant of the letters patent is being processed.

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Latest action published by the INPI: 01/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deutsche Texaco Ag

DE

Inventors

B. D. (pessoa física)

N. D. (pessoa física)

W. W. (pessoa física)

Technical data

IPC Classification

B01J 31/06B01J 39/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

01/24/1989

RPI 953

Publicação do pedido de patente

#3.1

12/09/1986

RPI 842

Pedido de patente depositado

#2.1

10/21/1986

RPI 835

Republicação - classificação IPC

#15.11

07/23/1991

RPI 1077

Retificação

#15.3

07/16/1991

RPI 1076

Deferimento

#9.1

04/02/1991

RPI 1061

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