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Official data from INPI

LIMITADOR DE TORQUE PARA EMBREAGEM ANTIPATINANTE DE TRITURADOR GIRATÓRIO.

Em AnáliseInvention Patent

Application data

Number

PI8602152

Type

Invention Patent

Filing

05/13/1986

Publication

08/11/1987

Progress at the INPI

  1. Filing05/13/86
  2. Publication08/11/87
  3. Examination09/29/87
  4. Allowance04/03/90
  5. Grant10/30/90
  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

Barber-Greene Company

US

Inventors

J. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

813.494 · 12/26/1985

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

08/11/1987

RPI 877

Pedido de patente depositado

#2.1

11/11/1986

RPI 838

Carta-patente expirada

#21.1

Patente extinta em 13/05/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

10/30/1990

RPI 1039

Deferimento

#9.1

04/03/1990

RPI 1012

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