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Official data from INPI

PROCESSO PARA PREPARAÇÃO DE DERIVADOS MONO- E DIACÍCLICOS DE COMPOSTOS DEFINIDOS GENERICAMENTE COMO LL-F28249

PublicadaInvention Patent

Application data

Number

PI8704737

Type

Invention Patent

Filing

09/11/1987

Publication

05/03/1988

Progress at the INPI

  1. Filing09/11/87
  2. Publication05/03/88
  3. Examination08/28/90
  4. Allowance01/18/94
  5. Grant06/28/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 05/03/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

American Cyanamid Company

US

See this company's full portfolio

Inventors

G. A. (pessoa física)

US

Technical data

Priority claims

US

907,281 · 09/12/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/03/1988

RPI 915

Pedido de patente depositado

#2.1

12/01/1987

RPI 893

Carta-patente expirada

#21.1

Patente extinta em 11/09/2002

07/29/2008

RPI 1960

Republicação - classificação IPC

#15.11

02/12/1997

RPI 1367

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

05/10/1994

RPI 1223

Deferimento

#9.1

01/18/1994

RPI 1207

Conhecimento de parecer técnico

#7.1

02/09/1993

RPI 1158

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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