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Official data from INPI

COPOLÍMERO, ARTIGO E PROCESSO PARA A PREPARAÇÃO DE COPOLÍMERO

IndeferidaInvention Patent

Application data

Number

PI9002456

Type

Invention Patent

Filing

05/22/1990

Publication

08/13/1991

Progress at the INPI

Under appeal
  1. Filing05/22/90
  2. Publication08/13/91
  3. Examination09/14/93
  4. Refused04/27/99
  5. Grant
  6. In force

The application was refused by the INPI on 04/27/1999. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 04/27/1999. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

J. B. (pessoa física)

W. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

356.492 · 05/25/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

Indeferido com base nos Artigos n°s 37, 8 e 13 da LPI 9276/96.

04/27/1999

RPI 1477

Conhecimento de parecer técnico

#7.1

05/26/1998

RPI 1431

Solicitação de exame técnico

#4.1

09/14/1993

RPI 1189

Publicação do pedido de patente

#3.1

08/13/1991

RPI 1080

Pedido de patente depositado

#2.1

10/02/1990

RPI 1035

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