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Official data from INPI

TRANSDUTOR DE PRESSAO

ConcedidaInvention Patent

Application data

Number

PI8307285

Type

Invention Patent

Filing

12/27/1983

Publication

08/06/1985

Progress at the INPI

  1. Filing12/27/83
  2. Publication08/06/85
  3. Examination03/11/86
  4. Allowance06/07/88
  5. Grant03/28/89
  6. Invalidated10/30/90

The patent was invalidated by the INPI in an administrative invalidity proceeding. Protection no longer exists.

Talk to a specialist

Latest action published by the INPI: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

INTERFACE INSTR CIENTIFICA E I [BR]

Inventors

P. O. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/28/1989

RPI 962

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/07/1988

RPI 920

14.7

01/05/1988

RPI 898

Retificação

#15.6

08/04/1987

RPI 876

Retificação

#15.3

03/31/1987

RPI 858

Solicitação de exame técnico

#4.1

03/11/1986

RPI 803

Publicação do pedido de patente

#3.1

08/06/1985

RPI 772

Pedido de patente depositado

#2.1

03/13/1984

RPI 699

200

10/30/1990

RPI 1039

201

07/31/1990

RPI 1026

Pedido de licença voluntária

#17.1

05/22/1990

RPI 1019

Pedido de licença voluntária

#17.1

03/01/1990

RPI 1007

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