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Official data from INPI

TRANSMOTOR PARA PROPORCIONAR UMA TENSÃO DE SAÍDA PROPORCIONAL A UMA TENSÃO DE ENTRADA E PARA PROPORCIONAR UM EIXO GIRÁVEL SELETIVAMENTE;TRANSFORMADOR;MOTOR;E FORNO

PublicadaInvention Patent

Application data

Number

PI8702307

Type

Invention Patent

Filing

05/06/1987

Publication

02/17/1988

Progress at the INPI

  1. Filing05/06/87
  2. Publication02/17/88
  3. Examination09/11/90
  4. Allowance06/16/92
  5. Grant06/29/93
  6. Terminated10/17/95

The patent was granted on 06/29/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Litton Systems, Inc.

US

See this company's full portfolio

Inventors

J. C. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

860.632 · 05/07/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/17/1988

RPI 904

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão da patente

#16.1

06/29/1993

RPI 1178

110

03/30/1993

RPI 1165

Recurso

#12.1

09/29/1992

RPI 1139

Republicação - classificação IPC

#15.11

08/11/1992

RPI 1132

Deferimento

#9.1

06/16/1992

RPI 1124

Pedido de certificado de adição de invenção

#5.1

01/15/1991

RPI 1050

Solicitação de exame técnico

#4.1

09/11/1990

RPI 1032

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