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Official data from INPI

PANELA DE PRESSÃO

Arquivada/ExtintaInvention PatentPCT · US1990001779

Application data

Number

PI9007611

Type

Invention Patent

Filing

04/03/1990

Publication

06/30/1992

PCT

US1990001779

Progress at the INPI

  1. Filing04/03/90
  2. Publication06/30/92
  3. Examination04/13/93
  4. Allowance05/20/97
  5. Grant01/21/98
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

National Presto Industries, Inc

US

Inventors

W. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

397.978 · 08/23/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 03/04/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

01/21/1998

RPI 1413

Deferimento

#9.1

05/20/1997

RPI 1381

Conhecimento de parecer técnico

#7.1

04/23/1996

RPI 1325

Solicitação de exame técnico

#4.1

04/13/1993

RPI 1167

Notificação de entrada na fase nacional - PCT

#1.3

06/30/1992

RPI 1126

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