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Official data from INPI

PROCESSO DE CONTROLE DE CORROSÃO E INCRUSTAÇÕES EM SUPERFÍCIES DE AÇO DOCE DE UM SISTEMA INDUSTRIAL DE ÁGUA DE RESFRIAMENTO

IndeferidaInvention Patent

Application data

Number

PI9600715

Type

Invention Patent

Filing

02/13/1996

Publication

12/30/1997

Progress at the INPI

Under appeal
  1. Filing02/13/96
  2. Publication12/30/97
  3. Examination
  4. Refused02/18/03
  5. Grant
  6. In force

The application was refused by the INPI on 02/18/2003. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 02/18/2003. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nalco Chemical Company

US

See this company's full portfolio

Inventors

B. Y. (pessoa física)

US

D. B. (pessoa física)

US

D. J. (pessoa física)

US

F. L. (pessoa física)

US

S. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/388,546 · 02/14/1995

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

Indeferido o presente pedido com base no disposto no Art. 37 combinado com os Arts. 8º e 13º da Lei 9279 de 14/05/96.

02/18/2003

RPI 1676

Conhecimento de parecer técnico

#7.1

09/24/2002

RPI 1655

Publicação do pedido de patente

#3.1

12/30/1997

RPI 1410

Pedido de patente depositado

#2.1

03/19/1996

RPI 1320

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