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Official data from INPI

PROCESSO DE ISOMERIZAÇÃO PARA A PRODUÇÃO DE ISÔMEROS DE HIDROCARBONETOS AROMÁTICOS COM OITO ÁTOMOS DE CARBONO POR MOLÉCULAS.

Em AnáliseInvention Patent

Application data

Number

PI8006831

Type

Invention Patent

Filing

10/23/1980

Publication

-

Progress at the INPI

  1. Filing10/23/80
  2. Publication
  3. Examination01/05/82
  4. Allowance07/19/83
  5. Grant02/28/84
  6. Terminated06/21/88

The patent was granted on 02/28/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Engelhard Minerals & Chemicals Corporation.

Inventors

T. H. (pessoa física)

Technical data

IPC Classification

Priority claims

US

098.099 · 11/28/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Cessão de direito de exploração

#22.1

12/10/1985

RPI 790

Concessão da patente

#16.1

02/28/1984

RPI 697

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

03/29/1983

RPI 649

6.2

09/21/1982

RPI 622

14.1

05/25/1982

RPI 605

Solicitação de exame técnico

#4.1

01/05/1982

RPI 585

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