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Official data from INPI

LAVADOR DE AR APERFEIÇOADO E NEUTRALIZADOR DE VAPORES DE ÁCIDOS E OUTROS PRODUTOS

Prazo de SigiloInvention Patent

Application data

Number

PI8902712

Type

Invention Patent

Filing

06/08/1989

Publication

12/26/1990

Progress at the INPI

  1. Filing06/08/89
  2. Publication12/26/90
  3. Examination02/19/91
  4. Allowance12/19/95
  5. Grant03/25/97
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 07/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. B. (pessoa física)

SP, BR

Inventors

I. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

07/18/1989

RPI 978

Carta-patente expirada

#21.1

Patente extinta em 08/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

03/25/1997

RPI 1373

Notificação para pagamento de retribuição

#13.1

06/25/1996

RPI 1334

Deferimento

#9.1

12/19/1995

RPI 1307

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

Publicação do pedido de patente

#3.1

12/26/1990

RPI 1047

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