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Official data from INPI

COMPOSICAO DE DIALQUILMAGNESIO SOLUVEL EM HIDROCARBONETO E RESPECTIVO PROCESSO DE PRODUCAO

Em AnáliseInvention Patent

Application data

Number

PI7905622

Type

Invention Patent

Filing

04/05/1979

Publication

-

Progress at the INPI

  1. Filing04/05/79
  2. Publication
  3. Examination02/16/82
  4. Allowance08/07/84
  5. Grant05/28/85
  6. Terminated05/17/88

The patent was granted on 05/28/1985 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TEXAS ALKYLS INC

Inventors

F. L. (pessoa física)

M. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

01/31/1984

RPI 693

6.2

08/10/1982

RPI 616

Solicitação de exame técnico

#4.1

02/16/1982

RPI 591

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