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Official data from INPI

LIGA DE MÚLTIPLOS COMPONENTES, Á BASE DE NI, RESISTENTE Á CORROSÃO Á OXIDAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI7907903

Type

Invention Patent

Filing

12/04/1979

Publication

-

Progress at the INPI

  1. Filing12/04/79
  2. Publication
  3. Examination05/04/82
  4. Allowance11/03/87
  5. Grant03/29/88
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 03/29/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Castolin S.A

CH

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Inventors

S. H. (pessoa física)

Technical data

IPC Classification

Priority claims

CH

3629/78 · 04/05/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1988

RPI 910

100

11/03/1987

RPI 889

120

06/16/1987

RPI 869

120

01/13/1987

RPI 847

Petição de recurso

#12.2

07/08/1986

RPI 820

8.1

05/20/1986

RPI 813

Indeferimento

#9.2

02/04/1986

RPI 798

Conhecimento de parecer técnico

#7.1

11/01/1983

RPI 680

Solicitação de exame técnico

#4.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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