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Official data from INPI

PROCESSO PARA OXIDACAO DE BUTANO PARA DAR ACIDO ACETICO,E PROCESSO PARA A COPRODUCAO DE ACIDO ACETICO E ACETATOS DE GLICOL

Em AnáliseInvention Patent

Application data

Number

PI7802374

Type

Invention Patent

Filing

04/19/1977

Publication

-

Progress at the INPI

  1. Filing04/19/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant10/25/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STANDARD OIL CO

See this company's full portfolio

Inventors

S. E. (pessoa física)

Z. W. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/08/1987

RPI 881

Concessão da patente

#16.1

10/25/1983

RPI 679

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Conhecimento de parecer técnico

#7.1

08/17/1982

RPI 617

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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