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Official data from INPI

APERFEICOAMENTO DE PROCESSOS DE DESCAROCAMENTO

Em AnáliseInvention Patent

Application data

Number

PI7703559

Type

Invention Patent

Filing

06/02/1976

Publication

-

Progress at the INPI

  1. Filing06/02/76
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant02/22/83
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 11/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

A. M. (pessoa física)

Inventors

F. A. (pessoa física)

N. P. (pessoa física)

V. N. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

11/01/1988

RPI 941

20.6

06/28/1988

RPI 923

18.8

02/17/1988

RPI 904

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Cessão de direito de exploração

#22.1

11/26/1985

RPI 788

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

Exigência - art. 36 da LPI

#6.1

01/19/1982

RPI 587

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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