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Official data from INPI

PROCESSO DE INIBIÇÃO DA CORROSÃO EM LIGAS DE FERRO E COBRE CAUSADA PELO VAPOR VEGETAL EM USINAS DE AÇÚCAR

Arquivada/ExtintaInvention Patent
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Application data

Number

PI9000958

Type

Invention Patent

Filing

03/01/1990

Publication

08/07/1990
View on INPI

Progress at the INPI

  1. Filing03/01/90
  2. Publication08/07/90
  3. Abandoned01/15/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned for failure to pay the annuities (art. 86 of the Brazilian IP Act). The technology is in the public domain in Brazil.

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Latest action published by the INPI: 04/18/2000. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Aquatec Química S/A.

SP, BR

W.R. Grace & Co. - Conn

SP, BR

Inventors

E. W. (pessoa física)

BR

I. M. (pessoa física)

BR

M. A. (pessoa física)

BR

Technical data

IPC Classification

C23F 11/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento por falta de pagamento

#8.6

Referente a 7ª, 8ª, 9ª e 10ª anuidade

04/18/2000

RPI 1528

8.1

Referente a 7ª, 8ª e 9ª anuidade

12/22/1998

RPI 1459

14.1

07/02/1996

RPI 1335

14.1

06/29/1993

RPI 1178

14.1

06/22/1993

RPI 1177

Solicitação de exame técnico

#4.1

01/15/1991

RPI 1050

Publicação antecipada

#3.2

08/07/1990

RPI 1027

Pedido de patente depositado

#2.1

05/29/1990

RPI 1020

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