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Official data from INPI

FECHO CORREDIÇO NO BOCAL DE DESPEJO DE UM VASO CONTENDO METAL FUNDIDO

Em AnáliseInvention Patent

Application data

Number

PI8707428

Type

Invention Patent

Filing

06/23/1987

Publication

11/01/1988

Progress at the INPI

  1. Filing06/23/87
  2. Publication11/01/88
  3. Examination11/14/89
  4. Allowance03/01/94
  5. Grant03/28/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 11/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

CH

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Inventors

R. F. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

03336/86 · 08/20/1986

CH

03337/86 · 08/20/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

11/14/1989

RPI 995

Notificação de entrada na fase nacional - PCT

#1.3

11/01/1988

RPI 941

Carta-patente expirada

#21.1

Patente extinta em 23/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

03/28/1995

RPI 1269

13.2

07/26/1994

RPI 1234

Notificação para pagamento de retribuição

#13.1

06/14/1994

RPI 1228

Deferimento

#9.1

03/01/1994

RPI 1213

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