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Official data from INPI

APARELHO PARA MEDIR VALORES INSTANTANEOS DE PRESSAO NOS CILINDROS DE UM MOTOR DE MOVIMENTO ALTERNADO E/OU PARA COMPUTAR A PRESSAO MEDIA INDICADA

Em AnáliseInvention Patent
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Application data

Number

PI7704731

Type

Invention Patent

Filing

07/19/1976

Publication

-
View on INPI

Progress at the INPI

  1. Filing07/19/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant
  6. Expired07/13/93

The letters patent expired on 07/13/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BURMEISTER & WAINS AS

Inventors

No inventors listed.

Technical data

IPC Classification

No IPC classification.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

09/27/1988

RPI 936

20.4

01/22/1985

RPI 744

20.11

07/10/1984

RPI 716

20.11

04/10/1984

RPI 703

20.7

02/07/1984

RPI 694

14.1

05/04/1982

RPI 602

14.4

04/27/1982

RPI 601

14.4

04/20/1982

RPI 600

Notificação para pagamento de retribuição

#13.1

03/02/1982

RPI 593

Conhecimento de parecer técnico

#7.1

10/20/1981

RPI 574

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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