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Official data from INPI

DENTE UNITÁRIO E ARRANJO DE DENTES PARA ESCAVADEIRA OU DRAGA

Em AnáliseInvention Patent

Application data

Number

PI8506287

Type

Invention Patent

Filing

12/06/1985

Publication

08/26/1986

Progress at the INPI

  1. Filing12/06/85
  2. Publication08/26/86
  3. Examination10/11/88
  4. Allowance07/23/91
  5. Grant04/28/92
  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: 09/19/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lehnhoff Hartstahl GmbH. & Co

DE

Inventors

P. L. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 34 44 563.3 · 12/06/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

09/19/1989

RPI 987

Solicitação de exame técnico

#4.1

10/11/1988

RPI 938

Publicação do pedido de patente

#3.1

08/26/1986

RPI 827

Pedido de patente depositado

#2.1

02/25/1986

RPI 801

Carta-patente expirada

#21.1

Patente extinta em 06/12/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

04/28/1992

RPI 1117

Notificação para pagamento de retribuição

#13.1

11/19/1991

RPI 1094

Deferimento

#9.1

07/23/1991

RPI 1077

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