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Official data from INPI

PROCESSOS PARA A HIDRÓLISE DE CELUSOSE EM AÇÚCARES SIMPLES; E HIDRÓLISE E FERMENTAÇÃO SIMULTÂNEA DA CELULOSE EM ETANOL.

ConcedidaInvention Patent

Application data

Number

PI8103530

Type

Invention Patent

Filing

06/04/1981

Publication

01/11/1983

Progress at the INPI

  1. Filing06/04/81
  2. Publication01/11/83
  3. Examination02/26/85
  4. Allowance06/14/88
  5. Grant12/27/88
  6. Terminated06/27/95

The patent was granted on 12/27/1988 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: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gulf Research & Development Company

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Inventors

S. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

243.296 · 03/23/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

02/26/1985

RPI 749

Publicação do pedido de patente

#3.1

01/11/1983

RPI 638

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

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