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Official data from INPI

MICRODENSITÔMETRO DE RAIOS-X

PublicadaInvention Patent

Application data

Number

PI8901874

Type

Invention Patent

Filing

04/20/1989

Publication

09/26/1989

Progress at the INPI

  1. Filing04/20/89
  2. Publication09/26/89
  3. Examination08/14/90
  4. Allowance02/22/94
  5. Grant11/29/94
  6. Expired12/15/09

The letters patent expired on 12/15/2009: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Universidade Estadual de Campinas - Unicamp

SP, BR

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Inventors

L. C. (pessoa física)

BR

S. C. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação antecipada

#3.2

09/26/1989

RPI 988

Pedido de patente depositado

#2.1

05/30/1989

RPI 971

Carta-patente expirada

#21.1

Patente extinta em 20/04/2004

12/15/2009

RPI 2032

Cessão de direito de exploração

#22.1

06/13/1995

RPI 1280

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

06/07/1994

RPI 1227

Deferimento

#9.1

02/22/1994

RPI 1212

Solicitação de exame técnico

#4.1

08/14/1990

RPI 1028

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