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Official data from INPI

PROCESSO PARA RECUPERAÇÃO DE METACROLEINA DOS GASES EFLUENTES, E, PROCESSO PARA RECUPERAÇÃO DE METACROLEINA DE UMA CORRENTE GASOSA.

ConcedidaInvention Patent

Application data

Number

PI8000451

Type

Invention Patent

Filing

01/24/1980

Publication

-

Progress at the INPI

  1. Filing01/24/80
  2. Publication
  3. Examination11/03/82
  4. Allowance08/07/84
  5. Grant02/26/85
  6. Terminated09/25/90

The patent was granted on 02/26/1985 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: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. C. (pessoa física)

US

Inventors

S. S. (pessoa física)

Y. N. (pessoa física)

Technical data

Priority claims

US

006,824 · 01/26/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

Notificação para pagamento de retribuição

#13.1

12/11/1984

RPI 738

Deferimento

#9.1

08/07/1984

RPI 720

Exigência - art. 36 da LPI

#6.1

01/17/1984

RPI 691

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

Solicitação de exame técnico

#4.1

11/03/1982

RPI 628

Anuidade - prazo legal encerrado

#18.2

09/25/1990

RPI 1034

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