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Official data from INPI

DISJUNTOR A GÁS SOB PRESSÃO PODENDO SER LIGADO E DESLIGADO SEM PERDA NOTÁVEL DE GÁS

Em AnáliseInvention Patent

Application data

Number

PI8503532

Type

Invention Patent

Filing

07/25/1985

Publication

04/22/1986

Progress at the INPI

  1. Filing07/25/85
  2. Publication04/22/86
  3. Examination03/01/88
  4. Allowance06/05/90
  5. Grant12/26/90
  6. Terminated05/21/96

The patent was granted on 12/26/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 03/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Alsthom

FR

See this company's full portfolio

Inventors

D. N. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

84 11 787 · 07/25/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/01/1988

RPI 906

Publicação do pedido de patente

#3.1

04/22/1986

RPI 809

Pedido de patente depositado

#2.1

10/01/1985

RPI 780

Anuidade - prazo legal encerrado

#18.2

05/21/1996

RPI 1329

Republicação - classificação IPC

#15.11

06/18/1991

RPI 1072

Concessão da patente

#16.1

12/26/1990

RPI 1047

Notificação para pagamento de retribuição

#13.1

09/18/1990

RPI 1033

Deferimento

#9.1

06/05/1990

RPI 1021

6.2

01/02/1990

RPI 1000

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