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Official data from INPI

POLÍMERO DE ÉTER DE CELULOSE, SOLÚVEL EM ÁGUA, E USO DO MESMO

ArquivadaInvention Patent

Application data

Number

PI8905021

Type

Invention Patent

Filing

10/03/1989

Publication

05/08/1990

Progress at the INPI

  1. Filing10/03/89
  2. Publication05/08/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 10/03/1989 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/15/1992. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aqualon Company

US

Inventors

A. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

252.315 · 10/03/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

12/15/1992

RPI 1150

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

03/01/1990

RPI 1007

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