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Official data from INPI

PAREDE EXTREME APERFEICOADA DE RECIPIENTE E ABA PARA ABRIR UM PAINEL DE ROMPIMENTO EM UM RECIPIENTE

ConcedidaInvention Patent

Application data

Number

PI7602984

Type

Invention Patent

Filing

05/12/1976

Publication

-

Progress at the INPI

  1. Filing05/12/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant06/29/82
  6. Expired08/03/93

The letters patent expired on 08/03/1993: 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: 06/29/1982. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

REYNOLDS METALS CO

Inventors

C. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/29/1982

RPI 610

Carta-patente expirada

#21.1

08/03/1993

RPI 1183

18.8

11/27/1990

RPI 1043

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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