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Official data from INPI

PROCESSO PARA REMOVER E EVITAR O ACUMULO DE LAMA BIOLOGIC

IndeferidaInvention Patent

Application data

Number

PI7800071

Type

Invention Patent

Filing

01/06/1977

Publication

-

Progress at the INPI

Under appeal
  1. Filing01/06/77
  2. Publication
  3. Examination
  4. Refused04/24/84
  5. Grant
  6. In force

The application was refused by the INPI on 04/24/1984. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/24/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NALCO CHEMICAL CO

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

04/24/1984

RPI 705

Conhecimento de parecer técnico

#7.1

04/26/1983

RPI 653

Exigência - art. 36 da LPI

#6.1

03/30/1982

RPI 597

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