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Official data from INPI

PROCESSO PARA A RECUPERAÇÃO DE ACETONA.

Em AnáliseInvention Patent

Application data

Number

PI7908532

Type

Invention Patent

Filing

12/27/1979

Publication

-

Progress at the INPI

  1. Filing12/27/79
  2. Publication
  3. Examination
  4. Allowance01/11/83
  5. Grant08/30/83
  6. Terminated11/16/88

The patent was granted on 08/30/1983 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

H. C. (pessoa física)

US

Inventors

C. W. (pessoa física)

H. R. (pessoa física)

L. J. (pessoa física)

Technical data

Priority claims

US

974,291 · 12/29/1978

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

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

05/24/1983

RPI 657

Deferimento

#9.1

01/11/1983

RPI 638

6.2

08/10/1982

RPI 616

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