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Official data from INPI

FITA DE MATRIZ INTEGRAL COM BARREIRA CONTRA BOLHAS PARA CELULAS DE COMBUSTIVEL DE CARBONATO FUNDIDO

ConcedidaInvention Patent

Application data

Number

PI8205468

Type

Invention Patent

Filing

09/30/1981

Publication

08/23/1983

Progress at the INPI

  1. Filing09/30/81
  2. Publication08/23/83
  3. Examination09/18/84
  4. Allowance12/03/85
  5. Grant06/24/86
  6. Terminated06/26/90

The patent was granted on 06/24/1986 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: 06/24/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

UNITED TECHNOLOGIES CORP [US]

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Inventors

L. D. (pessoa física)

R. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/24/1986

RPI 818

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/03/1985

RPI 789

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

09/18/1984

RPI 726

Publicação do pedido de patente

#3.1

08/23/1983

RPI 670

Pedido de patente depositado

#2.1

11/09/1982

RPI 629

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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