(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PROCESSO PARA PREPRAR CARBETO DE SILÍCIO

Em AnáliseInvention PatentPCT · US1990000276

Application data

Number

PI9007006

Type

Invention Patent

Filing

01/11/1990

Publication

10/22/1991

PCT

US1990000276

Progress at the INPI

  1. Filing01/11/90
  2. Publication10/22/91
  3. Examination12/01/92
  4. Allowance
  5. Grant
  6. In force

Published on 10/22/1991, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

Leave your contact and we will alert you

We track INPI publications and let you know as soon as this case moves.

We use your details only for this alert.

Latest action published by the INPI: 03/27/2018. 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

M. G. (pessoa física)

US

R. W. (pessoa física)

US

R. P. (pessoa física)

US

W. W. (pessoa física)

US

Technical data

Priority claims

US

PCT/US89/00114 · 01/11/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C01B 31/36.

03/27/2018

RPI 2464

Retificação

#15.3

11/28/1995

RPI 1304

Solicitação de exame técnico

#4.1

12/01/1992

RPI 1148

Notificação de entrada na fase nacional - PCT

#1.3

10/22/1991

RPI 1090

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.