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Official data from INPI

PORCA COM ANEL DE PRESSÃO

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905480

Type

Invention Patent

Filing

10/26/1989

Publication

05/29/1990

Progress at the INPI

  1. Filing10/26/89
  2. Publication05/29/90
  3. Examination08/25/92
  4. Allowance03/01/95
  5. Grant10/31/95
  6. Expired12/29/09

The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Erich Neumayer Beteiligungs- Und Verwaltungs- Gesellschaft mbH & Co KG

DE

Erich Neumayer GmbH & Co. KG

DE

Inventors

L. G. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

G 88 13 513.6 · 10/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 26/10/2004

12/29/2009

RPI 2034

Concessão da patente

#16.1

10/31/1995

RPI 1300

9.1.3

04/18/1995

RPI 1272

Deferimento

#9.1

03/01/1995

RPI 1265

14.4

09/21/1993

RPI 1190

Solicitação de exame técnico

#4.1

08/25/1992

RPI 1134

Publicação do pedido de patente

#3.1

05/29/1990

RPI 1020

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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