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Official data from INPI

CONJUNTO DE MANCAL, PROCESSO DE LUBRIFICAR O MESMO E ANEL FENDIDO

Arquivada/ExtintaInvention PatentPCT · US1990003671

Application data

Number

PI9007451

Type

Invention Patent

Filing

06/27/1990

Publication

06/16/1992

PCT

US1990003671

Progress at the INPI

  1. Filing06/27/90
  2. Publication06/16/92
  3. Examination07/13/93
  4. Allowance05/31/94
  5. Grant12/27/94
  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

Tribology Systems, Inc

US

Inventors

C. K. (pessoa física)

US

L. S. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

374,167 · 06/29/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/06/2005

06/15/2010

RPI 2058

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

10/04/1994

RPI 1244

Deferimento

#9.1

05/31/1994

RPI 1226

Solicitação de exame técnico

#4.1

07/13/1993

RPI 1180

Notificação de entrada na fase nacional - PCT

#1.3

06/16/1992

RPI 1124

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