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Official data from INPI

ELEMENTO POSTIÇO DE ROSCA DO TIPO DE ARAME HELICOIDALMENTE ENROLADO

Em AnáliseInvention Patent

Application data

Number

PI8605370

Type

Invention Patent

Filing

10/31/1986

Publication

08/04/1987

Progress at the INPI

  1. Filing10/31/86
  2. Publication08/04/87
  3. Examination09/29/87
  4. Allowance01/02/91
  5. Grant04/28/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Kato Spring Works Company LTD.

JP

Rexnord Inc

US

Inventors

A. Y. (pessoa física)

US

F. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

814.867 · 12/30/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/29/1987

RPI 884

Publicação do pedido de patente

#3.1

08/04/1987

RPI 876

Pedido de patente depositado

#2.1

04/14/1987

RPI 860

Carta-patente expirada

#21.1

Patente extinta em 31/10/2001

07/22/2008

RPI 1959

Pedido de licença compulsória

#20.1

09/19/1995

RPI 1294

Concessão da patente

#16.1

04/28/1992

RPI 1117

14.1

07/30/1991

RPI 1078

14.1

07/16/1991

RPI 1076

14.1

07/09/1991

RPI 1075

Deferimento

#9.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

06/05/1990

RPI 1021

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