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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8105789

Type

Invention Patent

Filing

09/10/1981

Publication

04/19/1983

Progress at the INPI

  1. Filing09/10/81
  2. Publication04/19/83
  3. Examination09/27/83
  4. Allowance08/06/85
  5. Grant03/25/86
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KALTENBACH & VOIGT [DE]

Inventors

B. E. (pessoa física)

L. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

12/10/1985

RPI 790

Deferimento

#9.1

08/06/1985

RPI 772

Exigência - art. 36 da LPI

#6.1

01/22/1985

RPI 744

Solicitação de exame técnico

#4.1

09/27/1983

RPI 675

Publicação do pedido de patente

#3.1

04/19/1983

RPI 652

Pedido de patente depositado

#2.1

10/27/1981

RPI 575

Carta-patente expirada

#21.1

Patente extinta em 10/09/96

08/19/2008

RPI 1963

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