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Official data from INPI

PROCESSO PARA PREPARAR UM DIÉSTER DE ÁCIDO OXÁLICO

Em AnáliseInvention Patent
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Application data

Number

PI8200333

Type

Invention Patent

Filing

01/22/1982

Publication

11/23/1982
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Progress at the INPI

  1. Filing01/22/82
  2. Publication11/23/82
  3. Examination06/14/83
  4. Allowance08/12/86
  5. Grant06/02/87
  6. Terminated05/24/88

The patent was granted on 06/02/1987 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/24/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ube Industries, Ltd.

JP

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Inventors

H. M. (pessoa física)

JP

H. Y. (pessoa física)

JP

K. M. (pessoa física)

JP

S. F. (pessoa física)

JP

Y. S. (pessoa física)

JP

Technical data

IPC Classification

C07C 67/36C07C 69/36

Priority claims

JP

7909/81 · 01/23/1981

JP

7911/81 · 01/23/1981

JP

9034/81 · 01/26/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/24/1988

RPI 918

Concessão da patente

#16.1

06/02/1987

RPI 867

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Exigência - art. 36 da LPI

#6.1

01/14/1986

RPI 795

Exigência - art. 36 da LPI

#6.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

06/14/1983

RPI 660

Publicação do pedido de patente

#3.1

11/23/1982

RPI 631

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