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Official data from INPI

PROCESSO DE PRODUCAO DE UM MODULO DE CERAMICA DE CAMADAS MULTIPLAS

ConcedidaInvention Patent

Application data

Number

PI8106873

Type

Invention Patent

Filing

10/28/1980

Publication

07/06/1982

Progress at the INPI

  1. Filing10/28/80
  2. Publication07/06/82
  3. Examination07/05/83
  4. Allowance01/13/87
  5. Grant08/25/87
  6. Terminated08/07/90

The patent was granted on 08/25/1987 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: 08/25/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DU PONT [US]

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Inventors

B. C. (pessoa física)

C. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

06/09/1987

RPI 868

Deferimento

#9.1

01/13/1987

RPI 847

Exigência - art. 36 da LPI

#6.1

02/18/1986

RPI 800

Republicação - classificação IPC

#15.11

06/11/1985

RPI 764

Conhecimento de parecer técnico

#7.1

12/11/1984

RPI 738

Pedido de certificado de adição de invenção

#5.1

11/16/1983

RPI 682

Solicitação de exame técnico

#4.1

07/05/1983

RPI 663

Publicação do pedido de patente

#3.1

07/06/1982

RPI 611

Pedido de patente depositado

#2.1

12/08/1981

RPI 581

Anuidade - prazo legal encerrado

#18.2

08/07/1990

RPI 1027

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