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Official data from INPI

PROCESSO CICLICO INTEGRADO PARA A SEPARACAO DE ACETATO DE VINILA DE METANOL

Em AnáliseInvention Patent

Application data

Number

PI7808570

Type

Invention Patent

Filing

12/30/1977

Publication

-

Progress at the INPI

  1. Filing12/30/77
  2. Publication
  3. Examination
  4. Allowance06/05/84
  5. Grant12/26/84
  6. Terminated11/16/88

The patent was granted on 12/26/1984 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: 11/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HALCON RES & DEV

Inventors

W. C. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/16/1988

RPI 943

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/05/1984

RPI 711

Conhecimento de parecer técnico

#7.1

02/08/1983

RPI 642

6.2

11/03/1981

RPI 576

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