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Official data from INPI

APARELHO EXAUSTOR CENTRÍFUGO

Em AnáliseInvention Patent

Application data

Number

PI7900346

Type

Invention Patent

Filing

01/19/1979

Publication

-

Progress at the INPI

  1. Filing01/19/79
  2. Publication
  3. Examination
  4. Allowance11/08/83
  5. Grant04/24/84
  6. Expired05/31/94

The letters patent expired on 05/31/1994: 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: 07/15/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Trane Company

US

Inventors

A. S. (pessoa física)

US

J. M. (pessoa física)

US

T. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

872.136 · 01/25/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

07/15/1986

RPI 821

Pedido de licença compulsória

#20.1

06/24/1986

RPI 818

Pedido de licença compulsória

#20.1

06/17/1986

RPI 817

20.3

02/18/1986

RPI 800

Concessão da patente

#16.1

04/24/1984

RPI 705

Notificação para pagamento de retribuição

#13.1

02/28/1984

RPI 697

Deferimento

#9.1

11/08/1983

RPI 681

Exigência - art. 36 da LPI

#6.1

03/01/1983

RPI 645

Exigência - art. 36 da LPI

#6.1

08/03/1982

RPI 615

6.2

01/12/1982

RPI 586

Carta-patente expirada

#21.1

05/31/1994

RPI 1226

20.7

11/12/1991

RPI 1093

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