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Official data from INPI

GUIA PARA CABEÇA DE EXTRUSÃO DE ISOLANTE PARA CABO ELÉTRICO

Em AnáliseInvention Patent

Application data

Number

PI8404751

Type

Invention Patent

Filing

09/21/1984

Publication

08/13/1985

Progress at the INPI

  1. Filing09/21/84
  2. Publication08/13/85
  3. Examination08/11/87
  4. Allowance07/16/91
  5. Grant12/31/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 08/11/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. C. (pessoa física)

US

Inventors

D. S. (pessoa física)

US

J. R. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

538590 · 10/03/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/11/1987

RPI 877

Publicação do pedido de patente

#3.1

08/13/1985

RPI 773

Pedido de patente depositado

#2.1

12/04/1984

RPI 737

Carta-patente expirada

#21.1

Patente extinta em 21/09/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

12/31/1991

RPI 1100

Republicação - classificação IPC

#15.11

09/17/1991

RPI 1085

Deferimento

#9.1

07/16/1991

RPI 1076

Exigência - art. 36 da LPI

#6.1

10/09/1990

RPI 1036

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