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Official data from INPI

PROCESSO DE RECUPERACAO DE 1,2-DICLOROETANO NAO TRANSFORMADO,A PARTIR DA DISSOCIACAO DO MESMO

Em AnáliseInvention Patent

Application data

Number

PI7808028

Type

Invention Patent

Filing

12/09/1977

Publication

-

Progress at the INPI

  1. Filing12/09/77
  2. Publication
  3. Examination
  4. Allowance07/13/82
  5. Grant04/26/83
  6. Terminated10/03/89

The patent was granted on 04/26/1983 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WACKER CHEMIE GMBH

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Inventors

F. H. (pessoa física)

S. L. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

10/03/1989

RPI 989

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

11/30/1982

RPI 632

Deferimento

#9.1

07/13/1982

RPI 612

6.2

11/10/1981

RPI 577

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