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Official data from INPI

MATERIAL DE CONTATO ELETRICO COMPOSTO DE LIGA DE OXIDOS DE PRATA E ESTANHO

ConcedidaInvention Patent

Application data

Number

PI7901714

Type

Invention Patent

Filing

03/22/1978

Publication

-

Progress at the INPI

  1. Filing03/22/78
  2. Publication
  3. Examination
  4. Allowance05/24/83
  5. Grant12/27/83
  6. Terminated01/28/92

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

CHUGAI ELECTRIC IND CO LTD

Inventors

S. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/24/1983

RPI 657

8.1

12/14/1982

RPI 634

Exigência - art. 36 da LPI

#6.1

06/01/1982

RPI 606

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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