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Official data from INPI

PROCESSO PARA PREPARACAO DE ALFA-CLOROACETOACETAMIDAS

Em AnáliseInvention Patent

Application data

Number

PI7903427

Type

Invention Patent

Filing

06/01/1978

Publication

-

Progress at the INPI

  1. Filing06/01/78
  2. Publication
  3. Examination
  4. Allowance07/19/83
  5. Grant01/31/84
  6. Expired07/26/94

The letters patent expired on 07/26/1994: 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: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WACKER CHEMIE GMBH

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Inventors

J. H. (pessoa física)

K. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Cessão de direito de exploração

#22.1

08/26/1986

RPI 827

Concessão da patente

#16.1

01/31/1984

RPI 693

Notificação para pagamento de retribuição

#13.1

11/16/1983

RPI 682

Deferimento

#9.1

07/19/1983

RPI 665

Exigência - art. 36 da LPI

#6.1

02/08/1983

RPI 642

6.2

03/16/1982

RPI 595

Carta-patente expirada

#21.1

07/26/1994

RPI 1234

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