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Official data from INPI

FECHO LIBERADOR DE PRESSAO,EXTREMIDADE DE LATA,MEMBRO DE RECIPIENTE E PROCESSO PARA FORMAR UM FECHO EM UM MEMBRO DE RECIPIENTE

ConcedidaInvention Patent

Application data

Number

PI7803658

Type

Invention Patent

Filing

06/10/1977

Publication

-

Progress at the INPI

  1. Filing06/10/77
  2. Publication
  3. Examination
  4. Allowance11/08/83
  5. Grant07/29/86
  6. Expired11/30/93

The letters patent expired on 11/30/1993: 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BROKEN HILL PTY CO LTD

Inventors

D. A. (pessoa física)

D. M. (pessoa física)

R. P. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/29/1986

RPI 823

110

04/01/1986

RPI 806

Recurso

#12.1

02/21/1984

RPI 696

Deferimento

#9.1

11/08/1983

RPI 681

Republicação - classificação IPC

#15.11

07/26/1983

RPI 666

Exigência - art. 36 da LPI

#6.1

05/31/1983

RPI 658

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

Carta-patente expirada

#21.1

11/30/1993

RPI 1200

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