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Official data from INPI

MATERIAL DE VEDAÇÃO EXTRUDÁVEL PARA USO EM CÉLULAS DE COMBUSTÍVEL DE ÁCIDO FOSFÓRICO, PILHA DE CÉLULAS ELETROQUÍMICAS QUE UTILIZAM O DITO MATERIAL

ConcedidaInvention Patent

Application data

Number

PI8202584

Type

Invention Patent

Filing

05/05/1982

Publication

04/19/1983

Progress at the INPI

  1. Filing05/05/82
  2. Publication04/19/83
  3. Examination
  4. Allowance10/16/84
  5. Grant04/30/85
  6. Terminated06/26/90

The patent was granted on 04/30/1985 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

J. T. (pessoa física)

US

J. P. (pessoa física)

US

R. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

263,660 · 05/14/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Republicação - classificação IPC

#15.11

02/26/1985

RPI 749

Deferimento

#9.1

10/16/1984

RPI 730

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

06/22/1982

RPI 609

Anuidade - prazo legal encerrado

#18.2

06/26/1990

RPI 1024

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