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Official data from INPI

CÂNULA DE TRAQUEOSTOMIA.

Em AnáliseInvention Patent

Application data

Number

PI8504438

Type

Invention Patent

Filing

09/09/1985

Publication

04/14/1987

Progress at the INPI

  1. Filing09/09/85
  2. Publication04/14/87
  3. Examination06/30/87
  4. Allowance01/14/92
  5. Grant10/27/92
  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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. F. (pessoa física)

SP, BR

Inventors

D. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

03/21/1989

RPI 961

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Publicação do pedido de patente

#3.1

04/14/1987

RPI 860

Pedido de patente depositado

#2.1

11/19/1985

RPI 787

Carta-patente expirada

#21.1

Patente extinta em 09/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

10/27/1992

RPI 1143

Notificação para pagamento de retribuição

#13.1

06/02/1992

RPI 1122

Deferimento

#9.1

01/14/1992

RPI 1102

Exigência - art. 36 da LPI

#6.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

02/13/1990

RPI 1006

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