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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE 4,6-DIAMINO-1,3-BENZENODIOL COM ALTA PUREZA.

DeferidaInvention PatentPCT · US1987002800

Application data

Number

PI8707856

Type

Invention Patent

Filing

10/28/1987

Publication

10/03/1989

PCT

US1987002800

Progress at the INPI

Awaiting grant fee payment
  1. Filing10/28/87
  2. Publication10/03/89
  3. Examination05/29/90
  4. Allowance07/18/95
  5. Grant
  6. In force

The application was allowed by the INPI on 07/18/1995. The grant of the letters patent is being processed.

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Latest action published by the INPI: 10/03/1989. 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

Z. L. (pessoa física)

CA

Technical data

Priority claims

US

925.358 · 10/30/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/03/1989

RPI 989

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: C07C 85/11; C07C 87/58.

03/27/2018

RPI 2464

Retificação

#15.3

12/12/1995

RPI 1306

Deferimento

#9.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

05/29/1990

RPI 1020

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