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Official data from INPI

PROCESSO DE SACARIFICAÇÃO ORGANOSSOLV DE ALTA EFICÁCIA.

ConcedidaInvention Patent

Application data

Number

PI8207243

Type

Invention Patent

Filing

03/26/1982

Publication

03/01/1983

Progress at the INPI

  1. Filing03/26/82
  2. Publication03/01/83
  3. Examination12/20/83
  4. Allowance09/30/86
  5. Grant06/30/87
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. T. (pessoa física)

Inventors

C. [. (pessoa física)

P. [. (pessoa física)

Technical data

IPC Classification

Priority claims

CA

395.820 · 02/09/1982

EP

82/00068 · 03/26/1982

US

248.023 · 03/26/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

07/02/1985

RPI 767

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Retificação da notificação da fase nacional - PCT

#1.3.1

05/10/1983

RPI 655

Notificação de entrada na fase nacional - PCT

#1.3

03/01/1983

RPI 645

Carta-patente expirada

#21.1

Patente extinta em 26/03/97

07/01/2008

RPI 1956

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