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Official data from INPI

DISPOSITIVO DE MANUTENCAO EM AZIMUTE DE UM TUBO POR MEIO DE UM SUPORTE DE SUPERFICIE

Concessão AnuladaInvention Patent

Application data

Number

PI7902566

Type

Invention Patent

Filing

04/28/1978

Publication

-

Progress at the INPI

  1. Filing04/28/78
  2. Publication
  3. Examination12/29/81
  4. Allowance08/17/82
  5. Grant02/22/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 11/22/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. F. (pessoa física)

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Inventors

P. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

11/22/1983

RPI 683

Concessão da patente

#16.1

02/22/1983

RPI 644

Deferimento

#9.1

08/17/1982

RPI 617

Solicitação de exame técnico

#4.1

12/29/1981

RPI 584

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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