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Official data from INPI

MEDIDOR DE ELETRICIDADE DE ESTADO SÓLIDO.

PublicadaInvention Patent

Application data

Number

PI8701698

Type

Invention Patent

Filing

04/10/1987

Publication

01/12/1988

Progress at the INPI

  1. Filing04/10/87
  2. Publication01/12/88
  3. Examination08/28/90
  4. Allowance08/24/93
  5. Grant04/26/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 01/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sangamo Weston, Inc

US

Sangamo Weston, Inc.

US

See this company's full portfolio

Inventors

D. P. (pessoa física)

US

R. S. (pessoa física)

US

Technical data

Priority claims

US

850,573 · 04/11/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

01/12/1988

RPI 899

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 10/04/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

04/26/1994

RPI 1221

Deferimento

#9.1

08/24/1993

RPI 1186

Republicação - classificação IPC

#15.11

06/01/1993

RPI 1174

Exigência - art. 36 da LPI

#6.1

12/08/1992

RPI 1149

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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