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Official data from INPI

PROCESSO PARA TRATAR RESÍDUOS DE DESTILAÇÃO DE DIISOCIANATO DE TOLUENO, RESÍDUO DE DESTILAÇÃO, POLÍMERO, ESPUMA DE ISOCIANURATO E PROCESSO PARA PREPARAR UM POLÍMERO

ArquivadaInvention Patent

Application data

Number

PI8906672

Type

Invention Patent

Filing

12/21/1989

Publication

09/11/1990

Progress at the INPI

  1. Filing12/21/89
  2. Publication09/11/90
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 12/21/1989 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

The Dow Chemical Company

US

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Inventors

C. K. (pessoa física)

D. B. (pessoa física)

J. N. (pessoa física)

S. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

289.082 · 12/22/1988

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

09/11/1990

RPI 1032

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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