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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE RESORCINOL

PublicadaInvention Patent
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Application data

Number

PI8806835

Type

Invention Patent

Filing

12/22/1988

Publication

08/29/1989
View on INPI

Progress at the INPI

  1. Filing12/22/88
  2. Publication08/29/89
  3. Examination02/19/91
  4. Allowance02/12/97
  5. Grant01/21/98
  6. Expired12/18/12

The letters patent expired on 12/18/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

Indspec Technologies Limited

US

Inventors

C. W. (pessoa física)

US

Technical data

IPC Classification

C07C 37/58C07C 39/08

Priority claims

US

136.315 · 12/22/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

08/29/1989

RPI 984

Pedido de patente depositado

#2.1

04/18/1989

RPI 965

Carta-patente expirada

#21.1

Patente extinta em 22/12/2008

12/18/2012

RPI 2189

Concessão da patente

#16.1

01/21/1998

RPI 1413

Notificação para pagamento de retribuição

#13.1

09/23/1997

RPI 1399

Deferimento

#9.1

02/12/1997

RPI 1367

14.1

11/07/1995

RPI 1301

Exigência - art. 36 da LPI

#6.1

08/01/1995

RPI 1287

Solicitação de exame técnico

#4.1

02/19/1991

RPI 1055

14.1

09/04/1990

RPI 1031

14.4

08/28/1990

RPI 1030

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