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Official data from INPI

PROCESSO PARA PRODUZIR UM POLÍMERO SUPERABSORVENTE

ArquivadaInvention Patent

Application data

Number

PI9201965

Type

Invention Patent

Filing

05/19/1992

Publication

01/05/1993

Progress at the INPI

  1. Filing05/19/92
  2. Publication01/05/93
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 05/19/1992 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: 10/03/1995. 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

T. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

703,076 · 05/20/1991

Abstract

"PROCESSO PARA PRODUZIR UM POLÍMERO SUPERABSORVENTE", que compreende secar parcialmente um gel de polímero reticulado parcialmente neutralizado, em seguida aumentar a temperatura do gel radiação de microondas na ausência de ar circulante e em seguida completando a secagem.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

10/03/1995

RPI 1296

Publicação do pedido de patente

#3.1

01/05/1993

RPI 1153

Pedido de patente depositado

#2.1

06/30/1992

RPI 1126

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