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Official data from INPI

MEMBRANA ANISOTRÓPICA AROMÁTICA DE POLIURÉIA/URETANO E PROCESSO PARA A PRODUÇÃO DA MESMA

PublicadaInvention Patent

Application data

Number

PI8805320

Type

Invention Patent

Filing

10/14/1988

Publication

05/30/1989

Progress at the INPI

  1. Filing10/14/88
  2. Publication05/30/89
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 10/14/1988 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: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Exxon Research And Engineering Company

US

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Inventors

B. K. (pessoa física)

J. F. (pessoa física)

R. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

108,821 · 10/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/30/1989

RPI 971

Pedido de patente depositado

#2.1

02/28/1989

RPI 958

Arquivamento - Art. 33 da LPI

#11.1

11/26/1991

RPI 1095

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