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Official data from INPI

PROCESSO DE PREPARACAO DE 2,3-DIHIDRO-2,2-DIMETIL-7-HIDROXI-BENZOFURANO

ConcedidaInvention Patent

Application data

Number

PI7907758

Type

Invention Patent

Filing

07/18/1979

Publication

-

Progress at the INPI

  1. Filing07/18/79
  2. Publication
  3. Examination07/13/82
  4. Allowance04/24/84
  5. Grant10/30/84
  6. Expired05/02/95

The letters patent expired on 05/02/1995: 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: 10/30/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PHILAGRO SA

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Inventors

M. D. (pessoa física)

R. M. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/30/1984

RPI 732

Notificação para pagamento de retribuição

#13.1

08/21/1984

RPI 722

Republicação - classificação IPC

#15.11

05/02/1984

RPI 706

Deferimento

#9.1

04/24/1984

RPI 705

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

Exigência - art. 36 da LPI

#6.1

10/11/1983

RPI 677

6.2

02/01/1983

RPI 641

Solicitação de exame técnico

#4.1

07/13/1982

RPI 612

Carta-patente expirada

#21.1

05/02/1995

RPI 1274

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