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Official data from INPI

TRANSMISSOR QUE FORNECE UMA SAÍDA QUE INDICA UMA DIFERENÇA DE PRESSÃO ENTRE UMA LINHA E A ATMOSFERA EXTERNA

Arquivada/ExtintaInvention PatentPCT · US1990004280

Application data

Number

PI9007667

Type

Invention Patent

Filing

07/31/1990

Publication

06/02/1992

PCT

US1990004280

Progress at the INPI

  1. Filing07/31/90
  2. Publication06/02/92
  3. Examination07/27/93
  4. Allowance10/11/94
  5. Grant05/30/95
  6. Expired06/15/10

The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rosemount Inc

US

See this company's full portfolio

Inventors

J. W. (pessoa física)

US

L. M. (pessoa física)

US

T. P. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

409,927 · 09/20/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 31/07/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

05/30/1995

RPI 1278

Notificação para pagamento de retribuição

#13.1

02/21/1995

RPI 1264

Deferimento

#9.1

10/11/1994

RPI 1245

Solicitação de exame técnico

#4.1

07/27/1993

RPI 1182

Notificação de entrada na fase nacional - PCT

#1.3

06/02/1992

RPI 1122

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