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Official data from INPI

DISPOSITIVO PARA RETIRADA DE GASES DE METAIS FUNDIDOS.

Em AnáliseInvention Patent

Application data

Number

PI8706036

Type

Invention Patent

Filing

02/23/1987

Publication

01/19/1988

Progress at the INPI

  1. Filing02/23/87
  2. Publication01/19/88
  3. Examination06/14/88
  4. Allowance05/15/90
  5. Grant11/27/90
  6. Terminated03/10/92

The patent was granted on 11/27/1990 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Schweizerische Aluminium Ag.

CH

Inventors

H. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

833.172 · 02/26/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/14/1988

RPI 921

Notificação de entrada na fase nacional - PCT

#1.3

01/19/1988

RPI 900

Anuidade - prazo legal encerrado

#18.2

03/10/1992

RPI 1110

Concessão da patente

#16.1

11/27/1990

RPI 1043

Notificação para pagamento de retribuição

#13.1

08/21/1990

RPI 1029

Deferimento

#9.1

05/15/1990

RPI 1018

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