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Official data from INPI

APERFEICOAMENTOS EM ASPIRADORES DE PO

Em AnáliseInvention Patent

Application data

Number

PI7805132

Type

Invention Patent

Filing

08/08/1978

Publication

-

Progress at the INPI

  1. Filing08/08/78
  2. Publication
  3. Examination02/24/82
  4. Allowance03/08/83
  5. Grant08/30/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GEN ELECTRIC BRASIL SA

Inventors

V. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

07/29/1986

RPI 823

Concessão da patente

#16.1

08/30/1983

RPI 671

Deferimento

#9.1

03/08/1983

RPI 646

Solicitação de exame técnico

#4.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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