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Official data from INPI

PROCESSO HETEROGÊNEO EM FASE DE VAPOR PARA A PREPARAÇÃO DE UM DIÉSTER DE ÁCIDO OXÁLICO.

IndeferidaInvention Patent

Application data

Number

PI8305322

Type

Invention Patent

Filing

09/28/1983

Publication

05/08/1984

Progress at the INPI

Under appeal
  1. Filing09/28/83
  2. Publication05/08/84
  3. Examination08/20/85
  4. Refused01/19/88
  5. Grant
  6. In force

The application was refused by the INPI on 01/19/1988. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

H. P. (pessoa física)

K. A. (pessoa física)

R. C. (pessoa física)

Technical data

Priority claims

US

428.816 · 09/30/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

01/19/1988

RPI 900

Conhecimento de parecer técnico

#7.1

12/30/1986

RPI 845

Solicitação de exame técnico

#4.1

08/20/1985

RPI 774

Publicação do pedido de patente

#3.1

05/08/1984

RPI 707

Pedido de patente depositado

#2.1

11/29/1983

RPI 684

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