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Official data from INPI

PROCESSO PARA SEPARACAO DE HIDROCARBONETOS AROMATICOS DE UMA MISTURA DE ISOMEROS E ADSORVENTE COMPREENDENDO UM ZEOLITO TIPO X OU TIPO Y

ConcedidaInvention Patent

Application data

Number

PI8103791

Type

Invention Patent

Filing

06/16/1980

Publication

03/09/1982

Progress at the INPI

  1. Filing06/16/80
  2. Publication03/09/82
  3. Examination06/15/82
  4. Allowance10/29/86
  5. Grant07/28/87
  6. Terminated09/13/94

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UOP INC

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Inventors

R. D. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/31/1987

RPI 858

Deferimento

#9.1

10/29/1986

RPI 836

Exigência - art. 36 da LPI

#6.1

03/04/1986

RPI 802

Exigência - art. 36 da LPI

#6.1

05/21/1985

RPI 761

Pedido de certificado de adição de invenção

#5.1

12/14/1982

RPI 634

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

Publicação do pedido de patente

#3.1

03/09/1982

RPI 594

Anuidade - prazo legal encerrado

#18.2

09/13/1994

RPI 1241

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