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Official data from INPI

PROCESSO PARA A PURIFICACAO DE ETER DIMETILICO

Em AnáliseInvention Patent

Application data

Number

PI8606293

Type

Invention Patent

Filing

12/19/1986

Publication

07/05/1988

Progress at the INPI

  1. Filing12/19/86
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. In force

The application was filed at the INPI on 12/19/1986. It awaits formal examination and publication in the RPI gazette.

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Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNION RHEINISCHE BRAUNKOHLEN [DE]

Inventors

D. H. (pessoa física)

H. H. (pessoa física)

M. E. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de certificado de adição de invenção

#5.1

01/10/1989

RPI 951

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Publicação do pedido de patente

#3.1

07/05/1988

RPI 924

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Retificação

#15.3

12/03/1991

RPI 1096

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