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Official data from INPI

SENSOR DE PRESSÃO.

Em AnáliseInvention PatentPCT · US1987001374

Application data

Number

PI8707739

Type

Invention Patent

Filing

06/12/1987

Publication

08/15/1989

PCT

US1987001374

Progress at the INPI

  1. Filing06/12/87
  2. Publication08/15/89
  3. Examination05/29/90
  4. Allowance10/06/92
  5. Grant05/25/93
  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: 08/15/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rosemount Inc

US

See this company's full portfolio

Inventors

R. F. (pessoa física)

US

S. B. (pessoa física)

US

T. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

879,938 · 06/30/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

08/15/1989

RPI 982

15.17

07/04/1989

RPI 976

Retificação

#15.6

05/16/1989

RPI 969

Carta-patente expirada

#21.1

Patente extinta em 12/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

05/25/1993

RPI 1173

Notificação para pagamento de retribuição

#13.1

03/02/1993

RPI 1161

Deferimento

#9.1

10/06/1992

RPI 1140

Solicitação de exame técnico

#4.1

05/29/1990

RPI 1020

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