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Official data from INPI

PROCESSO COMBINADO DE DEPARACAO DE XILENO E TRANSALQUILACAO DE TOLUENO

Em AnáliseInvention Patent

Application data

Number

PI7701088

Type

Invention Patent

Filing

02/19/1976

Publication

-

Progress at the INPI

  1. Filing02/19/76
  2. Publication
  3. Examination
  4. Allowance03/02/82
  5. Grant10/26/82
  6. Terminated12/08/87

The patent was granted on 10/26/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UOP INC

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Inventors

H. M. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/08/1987

RPI 894

Concessão da patente

#16.1

10/26/1982

RPI 627

Notificação para pagamento de retribuição

#13.1

06/22/1982

RPI 609

Deferimento

#9.1

03/02/1982

RPI 593

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