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Official data from INPI

ARTIGO REFRATARIO E SEU PROCESSO DE FABRICACAO

ConcedidaInvention Patent

Application data

Number

PI8008182

Type

Invention Patent

Filing

12/14/1979

Publication

-

Progress at the INPI

  1. Filing12/14/79
  2. Publication
  3. Examination09/27/83
  4. Allowance01/15/85
  5. Grant07/30/85
  6. Terminated08/09/94

The patent was granted on 07/30/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

USS ENG & CONSULT [US]

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Inventors

C. M. (pessoa física)

R. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

08/07/1984

RPI 720

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Anuidade - prazo legal encerrado

#18.2

08/09/1994

RPI 1236

20.4

11/13/1990

RPI 1041

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