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Official data from INPI

PROCESSO PARA PREPARAR I,I-BIS(CLORO -FENIL)-2,2,2-TRICLOROETANOL ISENTO DE DDT

PublicadaInvention Patent

Application data

Number

PI8602543

Type

Invention Patent

Filing

06/02/1986

Publication

02/02/1988

Progress at the INPI

  1. Filing06/02/86
  2. Publication02/02/88
  3. Examination05/08/90
  4. Allowance08/04/92
  5. Grant03/30/93
  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: 02/02/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rohm And Haas Company

US

See this company's full portfolio

Inventors

A. M. (pessoa física)

US

R. N. (pessoa física)

US

W. Z. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

02/02/1988

RPI 902

Pedido de patente depositado

#2.1

12/09/1986

RPI 842

Carta-patente expirada

#21.1

Patente extinta em 02/06/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

03/30/1993

RPI 1165

Notificação para pagamento de retribuição

#13.1

12/29/1992

RPI 1152

Republicação - classificação IPC

#15.11

09/15/1992

RPI 1137

Deferimento

#9.1

08/04/1992

RPI 1131

Solicitação de exame técnico

#4.1

05/08/1990

RPI 1017

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