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Official data from INPI

PROCESSO PARA A PREPARAÇÃO CONTÍNUA DE ALQUILADO E APARELHO

Em AnáliseInvention Patent

Application data

Number

PI8500933

Type

Invention Patent

Filing

03/01/1985

Publication

10/22/1985

Progress at the INPI

  1. Filing03/01/85
  2. Publication10/22/85
  3. Examination08/11/87
  4. Allowance03/05/91
  5. Grant09/24/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 08/11/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Phillips Petroleum Company

US

See this company's full portfolio

Inventors

T. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

587.761 · 03/09/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

10/22/1985

RPI 783

Pedido de patente depositado

#2.1

05/28/1985

RPI 762

Carta-patente expirada

#21.1

Patente extinta em 01/03/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/24/1991

RPI 1086

Republicação - classificação IPC

#15.11

07/09/1991

RPI 1075

Notificação para pagamento de retribuição

#13.1

06/18/1991

RPI 1072

Deferimento

#9.1

03/05/1991

RPI 1057

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