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Official data from INPI

JUNTA DE VEDACAO PARA ARTICULACAO NO ACIONAMENTO DE ROTOR DE UMA MAQUINA HELICOIDAL,DE ACAO EXCENTRICA

ConcedidaInvention Patent

Application data

Number

PI7905431

Type

Invention Patent

Filing

08/24/1978

Publication

-

Progress at the INPI

  1. Filing08/24/78
  2. Publication
  3. Examination02/24/82
  4. Allowance12/20/83
  5. Grant02/26/85
  6. Expired04/18/95

The letters patent expired on 04/18/1995: 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: 02/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NETZSCH MOHNOPUMPEN GMBH

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Inventors

U. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/26/1985

RPI 749

110

09/25/1984

RPI 727

Recurso

#12.1

04/17/1984

RPI 704

Deferimento

#9.1

12/20/1983

RPI 687

Exigência - art. 36 da LPI

#6.1

06/28/1983

RPI 662

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

Solicitação de exame técnico

#4.1

02/24/1982

RPI 592

Carta-patente expirada

#21.1

04/18/1995

RPI 1272

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