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Official data from INPI

PROCESSO PARA A OXICLORACAO DE ETILENO EM UM LEITO FIXO,SISTEMA DE REACAO PARA A REALIZACAO DO MESMO E COMPOSICAO CANALIZADORA

ConcedidaInvention Patent

Application data

Number

PI7604577

Type

Invention Patent

Filing

07/14/1975

Publication

-

Progress at the INPI

  1. Filing07/14/75
  2. Publication
  3. Examination
  4. Allowance11/30/82
  5. Grant09/27/83
  6. Terminated09/18/90

The patent was granted on 09/27/1983 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: 09/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO

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Inventors

C. R. (pessoa física)

D. E. (pessoa física)

H. M. (pessoa física)

N. J. (pessoa física)

V. H. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/27/1983

RPI 675

Notificação para pagamento de retribuição

#13.1

05/10/1983

RPI 655

Deferimento

#9.1

11/30/1982

RPI 632

Anuidade - prazo legal encerrado

#18.2

09/18/1990

RPI 1033

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