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Official data from INPI

PROCESSOS PARA A REMOÇÃO DE ION DE OXALATO E PARA A REMOÇÃO DE H2S DE UMA CORRENTE GASOSA

IndeferidaInvention PatentPCT · US1995015393

Application data

Number

PI9510304

Type

Invention Patent

Filing

11/28/1995

Publication

11/11/1997

PCT

US1995015393

Progress at the INPI

Under appeal
  1. Filing11/28/95
  2. Publication11/11/97
  3. Examination
  4. Refused01/21/03
  5. Grant
  6. In force

The application was refused by the INPI on 01/21/2003. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 01/21/2003. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

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Inventors

M. A. (pessoa física)

US

S. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/360,890 · 12/21/1994

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

Indeferido o pedido de patente com base no Art. 8º, 13º e 37º da LPI.

01/21/2003

RPI 1672

Conhecimento de parecer técnico

#7.1

07/02/2002

RPI 1643

Notificação de entrada na fase nacional - PCT

#1.3

11/11/1997

RPI 1406

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