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Official data from INPI

DISPOSIÇÃO INTRODUZIDA EM CHALEIRA.

ConcedidaUtility Model

Application data

Number

MU6600294

Type

Utility Model

Filing

02/28/1986

Publication

06/24/1986

Progress at the INPI

  1. Filing02/28/86
  2. Publication06/24/86
  3. Examination08/19/86
  4. Allowance11/01/88
  5. Grant07/25/89
  6. Expired03/26/96

The letters patent expired on 03/26/1996: 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Corning Brasil Indústria e Comércio Ltda.

SP, BR

Corning Brasil Vidros Especiais Ltda

Inventors

D. B. (pessoa física)

J. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Solicitação de exame técnico

#4.1

08/19/1986

RPI 826

Publicação antecipada

#3.2

06/24/1986

RPI 818

Pedido de patente depositado

#2.1

06/17/1986

RPI 817

Carta-patente expirada

#21.1

03/26/1996

RPI 1321

20.7

01/03/1995

RPI 1257

Pedido de licença compulsória

#20.1

05/03/1994

RPI 1222

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