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Official data from INPI

DISPOSITIVO DE DRENAGEM.

Em AnáliseInvention Patent

Application data

Number

PI8307242

Type

Invention Patent

Filing

12/29/1983

Publication

08/06/1985

Progress at the INPI

  1. Filing12/29/83
  2. Publication08/06/85
  3. Examination06/02/87
  4. Allowance02/13/91
  5. Grant09/24/91
  6. Terminated04/30/96

The patent was granted on 09/24/1991 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/02/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Howmedica, Inc.

Pfizer Hospital Products Group, Inc.

US

Inventors

J. W. (pessoa física)

US

W. S. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/02/1987

RPI 867

14.4

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

Anuidade - prazo legal encerrado

#18.2

04/30/1996

RPI 1326

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

05/28/1991

RPI 1069

Deferimento

#9.1

02/13/1991

RPI 1054

Exigência - art. 36 da LPI

#6.1

07/31/1990

RPI 1026

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