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Official data from INPI

COMPOSTOS DE MULTI-FINALIDADES PERMEÁVEIS AO AR

IndeferidaInvention Patent

Application data

Number

PI8203551

Type

Invention Patent

Filing

06/17/1982

Publication

06/07/1983

Progress at the INPI

Under appeal
  1. Filing06/17/82
  2. Publication06/07/83
  3. Examination10/18/83
  4. Refused02/04/86
  5. Grant
  6. In force

The application was refused by the INPI on 02/04/1986. The invention was never patented.

Talk to a specialist

Latest action published by the INPI: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hughes Aircraft Company

US

See this company's full portfolio

Inventors

L. K. (pessoa física)

US

R. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

276.098 · 06/22/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Indeferimento

#9.2

02/04/1986

RPI 798

Republicação - classificação IPC

#15.11

02/26/1985

RPI 749

Conhecimento de parecer técnico

#7.1

06/12/1984

RPI 712

Solicitação de exame técnico

#4.1

10/18/1983

RPI 678

Publicação do pedido de patente

#3.1

06/07/1983

RPI 659

Pedido de patente depositado

#2.1

08/03/1982

RPI 615

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