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Official data from INPI

PROCESSO PARA PREPARACAO DE OLEFINAS C7-C9 A PARTIR DE UMA MISTURA DE PROPILENO E BUTENOS

Em AnáliseInvention Patent

Application data

Number

PI7704945

Type

Invention Patent

Filing

01/11/1977

Publication

-

Progress at the INPI

  1. Filing01/11/77
  2. Publication
  3. Examination
  4. Allowance06/01/82
  5. Grant
  6. Terminated12/15/87

The patent was granted 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: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EUTECO SPA

Inventors

No inventors listed.

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Notificação para pagamento de retribuição

#13.1

09/21/1982

RPI 622

Deferimento

#9.1

06/01/1982

RPI 606

15.0

10/27/1981

RPI 575

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