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Official data from INPI

DISPOSITIVO DE EXPANSÃO PARA UM SISTEMA DE REFRIGERAÇÃO, ÊMBOLO PARA O MESMO, E PROCESSOS DE FABRICAÇÃO DO MESMO

Arquivada/ExtintaInvention PatentPCT · US1988003107

Application data

Number

PI8807694

Type

Invention Patent

Filing

09/09/1988

Publication

08/07/1990

PCT

US1988003107

Progress at the INPI

  1. Filing09/09/88
  2. Publication08/07/90
  3. Examination08/27/91
  4. Allowance03/09/93
  5. Grant08/31/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Robertshaw Controls Company

US

See this company's full portfolio

Inventors

J. H. (pessoa física)

R. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

096.979 · 09/14/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 09/09/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

06/29/1993

RPI 1178

Deferimento

#9.1

03/09/1993

RPI 1162

Solicitação de exame técnico

#4.1

08/27/1991

RPI 1082

Notificação de entrada na fase nacional - PCT

#1.3

08/07/1990

RPI 1027

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