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Official data from INPI

ÁCIDOS ORGÂNICOS E PROCESSOS PARA SUA PREPARAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8104707

Type

Invention Patent

Filing

07/22/1981

Publication

03/01/1983

Progress at the INPI

  1. Filing07/22/81
  2. Publication03/01/83
  3. Examination04/30/85
  4. Allowance07/08/86
  5. Grant02/03/87
  6. Terminated08/07/90

The patent was granted on 02/03/1987 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: 02/03/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gulf Research & Development Company

See this company's full portfolio

Inventors

S. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/03/1987

RPI 850

Notificação para pagamento de retribuição

#13.1

11/04/1986

RPI 837

Deferimento

#9.1

07/08/1986

RPI 820

Exigência - art. 36 da LPI

#6.1

12/31/1985

RPI 793

Solicitação de exame técnico

#4.1

04/30/1985

RPI 758

Publicação do pedido de patente

#3.1

03/01/1983

RPI 645

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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