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Official data from INPI

REFINADOR A DISCO

Em AnáliseInvention PatentPCT · US1986000394

Application data

Number

PI8607252

Type

Invention Patent

Filing

02/25/1986

Publication

12/06/1988

PCT

US1986000394

Progress at the INPI

  1. Filing02/25/86
  2. Publication12/06/88
  3. Examination05/02/89
  4. Allowance01/23/96
  5. Grant02/04/97
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 05/02/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

See this company's full portfolio

Inventors

B. F. (pessoa física)

SE

P. G. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/02/1989

RPI 967

Notificação de entrada na fase nacional - PCT

#1.3

12/06/1988

RPI 946

Carta-patente expirada

#21.1

Patente extinta em 25/02/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

02/04/1997

RPI 1366

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/23/1996

RPI 1312

Exigência - art. 36 da LPI

#6.1

06/27/1995

RPI 1282

Exigência - art. 36 da LPI

#6.1

08/24/1993

RPI 1186

Exigência - art. 36 da LPI

#6.1

11/26/1991

RPI 1095

15.18

10/09/1990

RPI 1036

Retificação

#15.3

08/28/1990

RPI 1030

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