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Official data from INPI

PROCESSO DE PREPARAÇÃO DE ESTERES DE ÁCIDOS ARILACÉTICOS DAS ALFA-ALQUILARILCETONAS.

ConcedidaInvention Patent

Application data

Number

PI8000977

Type

Invention Patent

Filing

02/15/1980

Publication

-

Progress at the INPI

  1. Filing02/15/80
  2. Publication
  3. Examination01/11/83
  4. Allowance04/07/87
  5. Grant12/29/87
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montedison S.p.A.

IT

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Inventors

C. F. (pessoa física)

G. C. (pessoa física)

Technical data

Priority claims

IT

20348 A/79 · 02/20/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

08/11/1987

RPI 877

100

04/07/1987

RPI 859

120

04/15/1986

RPI 808

Indeferimento

#9.2

02/21/1984

RPI 696

Solicitação de exame técnico

#4.1

01/11/1983

RPI 638

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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