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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE ÉTERES DE CELULOSE DISPERSÁVEIS EM MEIOS AQUOSOS.

ArquivadaInvention Patent

Application data

Number

PI8304766

Type

Invention Patent

Filing

08/31/1983

Publication

11/06/1984

Progress at the INPI

  1. Filing08/31/83
  2. Publication11/06/84
  3. Abandoned09/30/86
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

P 32 32 467.7 · 09/01/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

01/10/1989

RPI 951

Exigência - art. 36 da LPI

#6.1

06/14/1988

RPI 921

Solicitação de exame técnico

#4.1

09/30/1986

RPI 832

Publicação do pedido de patente

#3.1

11/06/1984

RPI 733

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

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