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Official data from INPI

PROCESSO PARA SEPARAR ÁGUA ESGOTADA EM FENOL E ENRIQUECIDA EM FENOL DE SOLUÇÕES FENÓLICAS AQUOSAS

PublicadaInvention Patent

Application data

Number

PI8705448

Type

Invention Patent

Filing

10/13/1987

Publication

05/24/1988

Progress at the INPI

Awaiting grant fee payment
  1. Filing10/13/87
  2. Publication05/24/88
  3. Examination11/20/90
  4. Allowance04/26/94
  5. Grant
  6. In force

The application was allowed by the INPI on 04/26/1994. The grant of the letters patent is being processed.

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Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Bend Research, Inc.

US

See this company's full portfolio

Inventors

K. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

US

918.533 · 10/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/24/1988

RPI 918

Pedido de patente depositado

#2.1

02/23/1988

RPI 905

Retificação

#15.3

11/01/1994

RPI 1248

Deferimento

#9.1

04/26/1994

RPI 1221

Exigência - art. 36 da LPI

#6.1

06/29/1993

RPI 1178

Solicitação de exame técnico

#4.1

11/20/1990

RPI 1042

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