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Official data from INPI

PROCESSO PARA OBTER UM ESPESSADOR POLIMÉRICO, PROCESSO PARA MELHORAR A RESISTÊNCIA ÀS BOLHAS PREMATURAS DE REVESTIMENTOS DE BASE AQUOSA, PROCESSO PARA MELHORAR A ESTABILIDADE DA VISCOSIDADE E PROCESSO PARA MELHORAR A ESTABILIDADE AOENVELHECIMENTO

ArquivadaInvention Patent

Application data

Number

PI9100560

Type

Invention Patent

Filing

02/08/1991

Publication

10/29/1991

Progress at the INPI

  1. Filing02/08/91
  2. Publication10/29/91
  3. Abandoned09/28/93
  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.

Talk to a specialist

Latest action published by the INPI: 09/14/1999. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rohm And Haas Company

US

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Inventors

E. J. (pessoa física)

US

E. E. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

479,916 · 02/14/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 36 §1° da LPI

#11.2

09/14/1999

RPI 1497

Exigência - art. 36 da LPI

#6.1

11/24/1998

RPI 1455

Solicitação de exame técnico

#4.1

09/28/1993

RPI 1191

Publicação do pedido de patente

#3.1

10/29/1991

RPI 1091

Pedido de patente depositado

#2.1

08/27/1991

RPI 1082

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