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Official data from INPI

MAQUINA CENTRIFUGA CONTINUA APERFEICOADA

ConcedidaInvention Patent

Application data

Number

PI8106034

Type

Invention Patent

Filing

01/21/1980

Publication

11/24/1981

Progress at the INPI

  1. Filing01/21/80
  2. Publication11/24/81
  3. Examination09/13/83
  4. Allowance01/02/85
  5. Grant07/30/85
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WESTERN STATES MACHINE CO

Inventors

B. J. (pessoa física)

H. D. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

Exigência - art. 36 da LPI

#6.1

06/05/1984

RPI 711

Solicitação de exame técnico

#4.1

09/13/1983

RPI 673

Notificação de entrada na fase nacional - PCT

#1.3

11/24/1981

RPI 579

Carta-patente expirada

#21.1

Patente extinta em 21/01/96

08/19/2008

RPI 1963

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