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Official data from INPI

TRANSMISSÃO

Arquivada/ExtintaInvention PatentPCT · US1988002055

Application data

Number

PI8807577

Type

Invention Patent

Filing

06/21/1988

Publication

05/08/1990

PCT

US1988002055

Progress at the INPI

  1. Filing06/21/88
  2. Publication05/08/90
  3. Examination05/14/91
  4. Allowance01/05/93
  5. Grant06/29/93
  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

N. M. (pessoa física)

US

Inventors

N. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

066,238 · 06/23/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/06/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/29/1993

RPI 1178

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

01/05/1993

RPI 1153

Solicitação de exame técnico

#4.1

05/14/1991

RPI 1067

Notificação de entrada na fase nacional - PCT

#1.3

05/08/1990

RPI 1017

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