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Official data from INPI

GOLA-CALHA APLICADA NA BORDA SUPERIOR EXTERNA DOS TANQUES DE COMBUSTIVEL PARA SEU RESFRIAMENTO

ConcedidaUtility Model

Application data

Number

MU6101373

Type

Utility Model

Filing

10/01/1981

Publication

12/22/1981

Progress at the INPI

  1. Filing10/01/81
  2. Publication12/22/81
  3. Examination03/09/82
  4. Allowance09/01/87
  5. Grant04/26/88
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. E. (pessoa física)

Inventors

S. L. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

12/29/1987

RPI 897

Deferimento

#9.1

09/01/1987

RPI 880

Retificação

#15.6

03/17/1987

RPI 856

Alteração de numeração

#15.1

11/25/1986

RPI 840

8.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

10/23/1984

RPI 731

Solicitação de exame técnico

#4.1

03/09/1982

RPI 594

Publicação antecipada

#3.2

12/22/1981

RPI 583

Pedido de patente depositado

#2.1

11/17/1981

RPI 578

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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