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Official data from INPI

VÁLVULA DE CURSO RETILÍNEO

Em AnáliseInvention Patent

Application data

Number

PI8700813

Type

Invention Patent

Filing

02/20/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/20/87
  2. Publication12/22/87
  3. Examination07/11/89
  4. Allowance09/18/90
  5. Grant02/26/91
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/11/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Klein, Schanzlin & Becker Aktiengesellschaft

DE

Inventors

A. I. (pessoa física)

DE

G. A. (pessoa física)

DE

K. F. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 3609772.1 · 03/22/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/11/1989

RPI 977

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Carta-patente expirada

#21.1

Patente extinta em 20/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

02/26/1991

RPI 1056

Deferimento

#9.1

09/18/1990

RPI 1033

Exigência - art. 36 da LPI

#6.1

05/08/1990

RPI 1017

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