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Official data from INPI

COMPRESSOR APERFEIÇOADO

PublicadaInvention Patent

Application data

Number

PI8606418

Type

Invention Patent

Filing

12/23/1986

Publication

10/13/1987

Progress at the INPI

  1. Filing12/23/86
  2. Publication10/13/87
  3. Examination06/19/90
  4. Allowance08/06/91
  5. Grant04/28/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Holset Engineering Company Limited

GB

Inventors

F. F. (pessoa física)

GB

P. L. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8531739 · 12/24/1985

GB

8600884 · 01/15/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

10/13/1987

RPI 886

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 23/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

12/03/1991

RPI 1096

Deferimento

#9.1

08/06/1991

RPI 1079

Exigência - art. 36 da LPI

#6.1

03/12/1991

RPI 1058

Solicitação de exame técnico

#4.1

06/19/1990

RPI 1023

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