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Official data from INPI

FECHO CORREDIÇO PARA O DERRAMAMENTO EM RECIPIENTES CONTENDO METAL FUNDIDO, BEM COMO PARTE DE FECHO À PROVA DE FOGO

Em ExigênciaInvention Patent

Application data

Number

PI8501740

Type

Invention Patent

Filing

04/12/1985

Publication

12/10/1985

Progress at the INPI

  1. Filing04/12/85
  2. Publication12/10/85
  3. Examination12/15/87
  4. Allowance08/28/90
  5. Grant03/26/91
  6. Terminated07/25/95

The patent was granted on 03/26/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/30/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

CH

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Inventors

W. K. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

1858/84 · 04/13/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

05/30/1989

RPI 971

Solicitação de exame técnico

#4.1

12/15/1987

RPI 895

Publicação do pedido de patente

#3.1

12/10/1985

RPI 790

Pedido de patente depositado

#2.1

06/25/1985

RPI 766

Anuidade - prazo legal encerrado

#18.2

07/25/1995

RPI 1286

Concessão da patente

#16.1

03/26/1991

RPI 1060

Notificação para pagamento de retribuição

#13.1

12/11/1990

RPI 1045

Deferimento

#9.1

08/28/1990

RPI 1030

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