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Official data from INPI

COMPOSIÇÃO DE AGENTE ANTIESPUMANTE DE SILICONE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005669

Type

Invention Patent

Filing

11/08/1990

Publication

09/17/1991

Progress at the INPI

  1. Filing11/08/90
  2. Publication09/17/91
  3. Examination12/22/92
  4. Allowance08/10/99
  5. Grant05/30/00
  6. Expired05/21/13

The letters patent expired on 05/21/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. K. (pessoa física)

JP

Inventors

H. S. (pessoa física)

JP

K. A. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

288810/1989 · 11/08/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/11/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

05/30/2000

RPI 1534

Deferimento

#9.1

08/10/1999

RPI 1492

Exigência - art. 36 da LPI

#6.1

03/23/1999

RPI 1472

Exigência - art. 36 da LPI

#6.1

04/22/1998

RPI 1426

Solicitação de exame técnico

#4.1

12/22/1992

RPI 1151

Publicação do pedido de patente

#3.1

09/17/1991

RPI 1085

Pedido de patente depositado

#2.1

04/23/1991

RPI 1064

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