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Official data from INPI

SUPERLIGA COM BASE DE NÍQUEL.

Em AnáliseInvention Patent

Application data

Number

PI8206835

Type

Invention Patent

Filing

11/25/1982

Publication

10/04/1983

Progress at the INPI

  1. Filing11/25/82
  2. Publication10/04/83
  3. Examination05/28/85
  4. Allowance07/24/90
  5. Grant11/27/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 10/11/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

A. K. (pessoa física)

US

R. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

325.247 · 11/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Conhecimento de parecer técnico

#7.1

10/11/1988

RPI 938

6.2

08/19/1986

RPI 826

Solicitação de exame técnico

#4.1

05/28/1985

RPI 762

Publicação do pedido de patente

#3.1

10/04/1983

RPI 676

Pedido de patente depositado

#2.1

01/18/1983

RPI 639

Carta-patente expirada

#21.1

Patente extinta em 25/11/97

07/01/2008

RPI 1956

Republicação - classificação IPC

#15.11

02/26/1991

RPI 1056

Concessão da patente

#16.1

11/27/1990

RPI 1043

Deferimento

#9.1

07/24/1990

RPI 1025

Exigência - art. 36 da LPI

#6.1

01/23/1990

RPI 1003

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