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Official data from INPI

EMPREGO DE PRODUTOS HIDROSSOLÚVEIS FORMADOS POR ADIÇÃO DE ÓXIDO DE ETILENO E/OU ÓXIDO DE PROPILENO EM ÁCIDOS RESÍNICOS NATURAIS MODIFICADOS COMO AGENTES DE PREPARAÇÀO PARA CORANTES E COMPOSIÇÕES CORANTES PREPARADAS COM ESTES.

Em AnáliseInvention Patent

Application data

Number

PI7905897

Type

Invention Patent

Filing

09/14/1979

Publication

-

Progress at the INPI

Technical opinion to answer
  1. Filing09/14/79
  2. Publication
  3. Examination04/19/83
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 04/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

D. R. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

P 29 24 404.0 · 06/16/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

04/22/1987

RPI 861

Conhecimento de parecer técnico

#7.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

04/19/1983

RPI 652

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