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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE GLICOL-ALDEÍDO.

ConcedidaInvention Patent

Application data

Number

PI8201575

Type

Invention Patent

Filing

03/22/1982

Publication

02/08/1983

Progress at the INPI

  1. Filing03/22/82
  2. Publication02/08/83
  3. Examination03/12/85
  4. Allowance10/14/86
  5. Grant06/30/87
  6. Terminated06/26/90

The patent was granted on 06/30/1987 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Internationale Research Maatschappij B.V

NL

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Inventors

D. E. (pessoa física)

Technical data

Priority claims

GB

8109119 · 03/24/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Republicação - classificação IPC

#15.11

03/24/1987

RPI 857

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

11/19/1985

RPI 787

Solicitação de exame técnico

#4.1

03/12/1985

RPI 751

Publicação do pedido de patente

#3.1

02/08/1983

RPI 642

Pedido de patente depositado

#2.1

05/11/1982

RPI 603

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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