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Official data from INPI

PROCESSO PARA PREPARAR ETERES MONOALQUILICOS E DIALQUILICOS DE GLICOL

Em AnáliseInvention Patent

Application data

Number

PI8104220

Type

Invention Patent

Filing

09/12/1980

Publication

08/31/1982

Progress at the INPI

  1. Filing09/12/80
  2. Publication08/31/82
  3. Examination03/22/83
  4. Allowance03/19/85
  5. Grant10/01/85
  6. Terminated06/21/88

The patent was granted on 10/01/1985 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: 06/21/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

TEXACO DEVELOPMENT CORP [US]

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Inventors

K. F. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/21/1988

RPI 922

Concessão da patente

#16.1

10/01/1985

RPI 780

Notificação para pagamento de retribuição

#13.1

07/09/1985

RPI 768

Deferimento

#9.1

03/19/1985

RPI 752

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

03/22/1983

RPI 648

Publicação do pedido de patente

#3.1

08/31/1982

RPI 619

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