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Official data from INPI

SELO DE SEGURANCA

Em AnáliseInvention Patent

Application data

Number

PI8400650

Type

Invention Patent

Filing

02/15/1984

Publication

08/07/1984

Progress at the INPI

  1. Filing02/15/84
  2. Publication08/07/84
  3. Examination11/06/84
  4. Allowance08/12/86
  5. Grant06/30/87
  6. In force02/15/04

The patent was granted on 06/30/1987 and is in force until 02/15/2004. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.

Protection valid until:02/15/2004

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Latest action published by the INPI: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LIQUIGAS DO BRASIL S A [BR]

Inventors

B. A. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

22.2

11/14/1989

RPI 995

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

12/02/1986

RPI 841

Deferimento

#9.1

08/12/1986

RPI 825

Solicitação de exame técnico

#4.1

11/06/1984

RPI 733

Publicação antecipada

#3.2

08/07/1984

RPI 720

Pedido de patente depositado

#2.1

05/02/1984

RPI 706

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