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Official data from INPI

VÁLVULA DE ESFERA

Arquivada/ExtintaInvention PatentPCT · US1988004513

Application data

Number

PI8807592

Type

Invention Patent

Filing

12/16/1988

Publication

05/29/1990

PCT

US1988004513

Progress at the INPI

  1. Filing12/16/88
  2. Publication05/29/90
  3. Examination12/24/91
  4. Allowance06/22/93
  5. Grant02/16/94
  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

C. C. (pessoa física)

US

Cooper Industries, Inc.

US

See this company's full portfolio

Inventors

R. S. (pessoa física)

Technical data

IPC Classification

Priority claims

US

187.806 · 04/29/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 16/12/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

12/30/1997

RPI 1410

Concessão da patente

#16.1

02/16/1994

RPI 1211

Notificação para pagamento de retribuição

#13.1

11/09/1993

RPI 1197

Deferimento

#9.1

06/22/1993

RPI 1177

Exigência - art. 36 da LPI

#6.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

12/24/1991

RPI 1099

Notificação de entrada na fase nacional - PCT

#1.3

05/29/1990

RPI 1020

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